IEEE Magnetics Society Nagoya Chapter   Vice-Chair  

2021.1 - 2022.12   

Intermag2021 Program Commitee   Member  

2020.8 - 2021.4   

MORIS2021 Steering Committee   Chair  

2020.5 - 2023.3   

日本磁気学会　理事会   論文理事  

2019.6 - 2021.5   

日本磁気学会　編集・論文委員会   論文委員長  

2019.6 - 2021.5   

電気学会　A部門役員会   研究調査担当  

2019.5 - 2021.5   

電気学会　A部門研究調査運営委員会   副委員長  

2019.5 - 2021.5   

日本磁気学会　磁気センサ専門研究会   世話人  

2018.7   

MORIS2019 Steering Committee   Chair  

2018.5 - 2020.3   

日本磁気学会　編集・論文委員会   編集幹事  

2017.6 - 2019.5   

電気学会　光・熱・磁気の相互作用を利用した新規スピンデバイス・ストレージ技術調査専門委員会   委員長  

2017.4 - 2020.3   

MORIS2018 Program Committee   Co-chairs  

2016.12 - 2018.3   

MMM2016 Program Committee   Member  

2015.10 - 2016.11   

日本磁気学会　趙高感度マイクロ磁気センサ専門研究会   世話人  

2015.4 - 2018.3   

日本磁気学会　企画委員会   委員  

2015.2 - 2016.3   

MORIS2015 Program Committee   Co-chairs  

2014.10 - 2016.3   

電気学会東海支部   総務企画幹事  

2014.5 - 2016.5   

電気学会　フォト・マグノニクス技術調査専門委員会   幹事  

2014.4 - 2017.3   

Conference of the Institute of Electrical Engineers of Japan 2013   Program Committee The 3rd Group Member  

2013.9 - 2014.6   

MORIS 2013   Steering Committee, Publication Chair  

2013.5 - 2014.3   

Conference of the Institute of Electrical Engineers of Japan 2012   Program Committee The 3rd Group Member  

2011.9 - 2012.6   

電気学会　フォト・スピントロニクス技術調査専門委員会   幹事  

2011.4 - 2014.3   

ICAUMS 2010   Program Committee Member  

2010.4 - 2011.3   

MORIS 2011   Steering Committee, Publication Chair  

2010.1 - 2011.12   

日本磁気学会　スピントロニクス専門研究会   世話人  

2009.4   

日本磁気学会　光機能磁性デバイス・材料専門研究会   幹事  

2009.4   

ISAMMA 2010   Program Committee Member  

2009.4 - 2011.3   

IEEE Magnetics Society Nagoya Chapter   Secretary  

2009.1 - 2020.12   

MORIS 2009   Steering Committee, Publication Chair  

2008.3 - 2009.12   

電気学会　熱と磁気によるナノ領域スピン制御ストレージ技術調査専門委員会   幹事補佐  

2007.10 - 2010.9   

MORIS 2007   Steering Committee, Publication Chair  

2006.12 - 2008.3   

日本磁気学会　編集委員会   幹事  

2006.4 - 2017.5   

日本磁気学会　編集委員会   委員  

2005.4 - 2006.3   

MORIS 2006   Steering Committee, Publication Member  

2005.1 - 2006.10   

IEEE Intermag 2005   Steering Committee, Member of Secretary  

2003.7 - 2006.3   

日本磁気学会　ハイブリッド記録専門研究会   世話人  

2002.11 - 2008.3   

Spin Orbit Torques in Ferrimagnetic Gd/FeCo Multilayers Reviewed International journal

S. Yanai, D. Oshima, S. Takahashi, Y. Hirayama, T. Kato

Jpn. J. Appl. Phys.   Vol. 62   page： SB1004-1-6   2023.3

Fabrication of beta-Mn type CoZnMn(001) film on MgO single crystal substrate Reviewed International journal

D. Oshima, R. Mitsuhashi, N. Ikarashi, T. Kato, M. Nagao

AIP Adv.   Vol. 13   page： 025331-1-5   2023.2

Uniaxial in-plane magnetic anisotropy mechanism in Ni, Fe, and Ni-Fe alloy films deposited on single crystal Y-cut 128° LiNbO3 using magnetron sputtering Reviewed International journal

M. Ito, S. Ono, H. Fukui, K. Kogirima, N. Maki, T. Hikage, T. Kato, T. Ohkochi, A. Yamaguchi, M. Shima, K. Yamada

J. Magn. Magn. Mat.   Vol. 564   page： 170177-1-9   2022.12

Polarization-controlled tunable directional spin-driven photocurrents in a magnetic metamaterial with threefold rotational symmetry Reviewed International journal

M. Matsubara, T. Kobayashi, H. Watanabe, Y. Yanase, S. Iwata, T. Kato

Nature Commun.   Vol. 13   page： 6708-1-8   2022.11

Magnetically Separable High Performance Photocatalyst of Green Synthesized CoFe2O4/TiO2 Nanocomposites for Methylene Blue Removal Reviewed International coauthorship International journal

D. L. Puspitarum, N. I. Istiqomah, D. A. Larasati, R. M. Tumbelaka, A. Kusumaatmaja, D. Oshima, T. Kato, E. Suharyadi

Adv. Nat. Sci: Nanosci. Nanotechnol.   Vol. 13 ( 4 ) page： 045003   2022.10

Magneto-optical property and magnetic anisotropy of R0.5Bi2.5Fe5O12 (R = Eu, Sm, and Pr) thin films prepared by metal-organic decomposition Reviewed International journal

R. Urakawa, W. Asano, M. Nishikawa, M. Kawahara, T. Nishi, D. Oshima, T. Kato, T. Ishibashi

AIP Adv.   Vol. 12   page： 095322-1-8   2022.9

High reusability of green-synthesized Fe3O4/TiO2 photocatalyst nanoparticles for efficient degradation of methylene blue dye Reviewed International coauthorship International journal

R. M. Tumbelaka, N. I. Istiqomah, T. Kato, D. Oshima, E. Suharyadi

Mater. Today Commun.   Vol. 33   page： 104450-1-15   2022.9

Bismuth composition, thickness, and annealing temperature dependence of the spin Seebeck voltage in Bi-YIG films prepared using sol-gel solution and spin-coating method Reviewed International journal

M. Yamamoto, S. Masaki, Y. Shiota, T. Moriyama, T. Kato, T. Ono, M. Shima, K. Yamada

J. Magn. Magn. Mat.   Vol. 556   page： 169416-1-8   2022.5

Electric-field modulation of perpendicular magnetic anisotropy and damping constant in MgO/Co/Pt trilayers Reviewed International journal

A. Sakoguchi, T. Kato, D. Oshima, S. Iwata

IEEE Trans. Magn.   Vol. 58 ( 2 ) page： 4200105-1-5   2022.2

Influence of Substrate Temperature on Plsma-Enhaced Self-Assembling Formation of High Density FePt-Nanodot Reviewed International journal

S. Honda, K. Makihara, H. Furuhata, A. Ohta, M. Ikeda, D. Oshima, T. Kato, S. Miyazaki

Jpn. J. Appl. Phys.   Vol. 61 ( SA ) page： 1008-1-5   2022.1

Enhancement of spin-orbit torques by the change of uniaxial in-plane magnetic anisotropy in Py/Pt bilayers on a single crystal Y-Cut 128° LiNbO3 substrate Reviewed

M. Ito, A. Yamaguchi, D. Oshima, T. Kato, M. Shima, K. Yamada

Appl. Phys. Lett.   Vol. 119 ( 15 ) page： 152407-1-6   2021.10

Crystal Structure and Magnetic and Magneto-optical Properties of CoPt, MnPt3, CrPt3, MnAl and MnGa Films with Ordered Phase and Their Bit-patterned Media Invited Reviewed

S. Iwata, T. Kato, D. Oshima

J. Magn. Soc. Jpn.   Vol. 45   page： 118 - 124   2021.9

Perpendicular Anisotropy and Damping of MBE-grown MgO-Fe/Au(001) and Au/Fe/Au(001) Trilayers Reviewed

N. Kamiya, D. Oshima, S. Iwata, T. Kato

J. Magn. Soc. Jpn.   Vol. 45   page： 96 - 100   2021.7

Microstructures, Absorption Spectra, and Magnetic Properties of Core-shell Fe3O4@Ag Nanoparticles for Enhancing Sensitivity of Surface Plasmon Resonance (SPR) Sensor

Juharni, Yahya Ilyas Maulana, Suharyadi Edi, Kato Takeshi, Iwata Satoshi

INTERNATIONAL JOURNAL OF NANOELECTRONICS AND MATERIALS   Vol. 14 ( 3 ) page： 209 - 218   2021.7

Topotactic crystal structure transformation from spinel ferrite to wüstite in epitaxial Fe3O4 films via ion irradiation Reviewed

Y. Liu, Y. Hisamatsu, S. Sharmin, D. Oshima, S. Iwata, T. Kato, D. Sekiba, E. Kita, H. Yanagihara

J. Vac. Sci. Technol. A   Vol. 39 ( 3 ) page： 033403-1-5   2021.5

Effects of annealing temperature on microstructural, vibrational energy and magnetic properties of Ni-Zn ferrite nanoparticles Reviewed International coauthorship

E. Suharyadi, S. H. Pratiwi, I. P. T. Indrayana, T. Kato, S. Iwata

Mat. Res. Express   Vol. 8 ( 3 ) page： 036101-1-10   2021.3

MnGa Film with (001) Texture Fabricated on Thermally Oxidized Si Substrate Using CoGa Buffer Layer Reviewed

Y. Miwa, D. Oshima, T. Kato, S. Iwata

J. Magn. Soc. Jpn.   Vol. 44 ( 5 ) page： 117 - 121   2020.9

Progress on Efficient Current Induced Magnetization Switching Invited Reviewed

T. Kato, S. Iwata, D. Oshima

Electr. Eng. Jpn.   Vol. 212 ( 1-4 ) page： 3 - 10   2020.9

Photocatalytic activity of magnetic core-shell CoFe2O4@ZnO nanoparticles for purification of methylene blue

Suharyadi Edi, Muzakki Afifah, Nofrianti Astrie, Istiqomah Nurul Imani, Kato Takeshi, Iwata Satoshi

MATERIALS RESEARCH EXPRESS   Vol. 7 ( 8 )   2020.8

Element- and orbital-selective magnetic coherent rotation at the first-order phase transition of a hard uniaxial ferrimagnet Reviewed International coauthorship International journal

Sh. Yamamoto, D. I. Gorbunov, H. Akai, H. Yasumura, Y. Kotani, T. Nakamura, T. Kato, N. V. Mushnikov, A. V. Andreev, H. Nojiri, J. Wosnitza

Phys. Rev. B   Vol. 101   page： 174430   2020.5

Spectroscopic Ellipsometry Based Biosensor on Gold Thin Film for Detection of Microalgae Reviewed International coauthorship

R. A. N. Khasnaah, A. Herawati, L. Z. Maulana, E. A. Suyono, E. Suharyadi, I. Santoso, T. Kato, S. Iwata

Key Eng. Mater.   Vol. 840   page： 412 - 417   2020.4

Spin orbit torques in ferrimagnetic GdFeCo with various compositions Reviewed

Kawakami Keisuke, Kato Takeshi, Oshima Daiki, Iwata Satoshi

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 59   2020.4

Progress on Efficient Current Induced Magnetization Switching Invited Reviewed

T. Kato, S. Iwata, D. Oshima

  Vol. 140 ( 3 ) page： 106 - 112   2020.3

Highly (001) oriented MnAl thin film fabricated on CoGa buffer layer Reviewed

Oshima Daiki, Kato Takeshi, Iwata Satoshi

AIP ADVANCES   Vol. 10 ( 2 )   2020.2

Spin transfer torque switching of hybrid memory layers with low Curie temperature CoPd/Pd multilayers Reviewed

W. Zhao, T. Kimura, T. Kato, D. Oshima, Y. Sonobe, S. Takahashi, S. Iwata

J. Magn. Magn. Mat.   Vol. 493   page： 165749   2020.1

Patterned arrays of assembled nanoparticles prepared by interfacial assembly and femtosecond laser fabrication Invited Reviewed International coauthorship

C. Jiang, D. Oshima, S. Iwata, P. W. T. Pong, T. Kato

J. Nanopart. Res.   Vol. 22 ( 1 ) page： 1   2019.12

MnGa (001)-Textured Film Fabricated on Thermally Oxidized Si Substrate for Application to Ion Beam Bit Patterned Media Reviewed

Ishikawa Toru, Miwa Yoshitsugu, Oshima Daiki, Kato Takeshi, Iwata Satoshi

IEEE TRANSACTIONS ON MAGNETICS   Vol. 55 ( 7 )   2019.7

Crystal Structures and Magnetic Properties of Silica-Encapsulated CoZnFe2O4 Magnetic Nanoparticles Reviewed International coauthorship

Rusman La Ode, Puspitasari Amjad Tri, Suharyadi Edi, Kato Takeshi, Iwata Satoshi

JOURNAL OF MAGNETICS   Vol. 24 ( 1 ) page： 149 - 154   2019.3

ビッグデータ解析の基盤を支える磁気ストレージ，メモリの高度化 Invited

加藤剛志，塚本新

電気学会誌   Vol. 139 ( 1 ) page： 10 - 13   2019.1

Ion Irradiation for Planar Patterning of Magnetic Materials Reviewed

Kato Takeshi, Oshima Daiki, Iwata Satoshi

CRYSTALS   Vol. 9 ( 1 )   2019.1

Time domain magnetization dynamics study to estimate interlayer exchange coupling constant in Nd-Fe-B/Ni80Fe20 films Reviewed

Mandal R., Ogawa D., Tamazawa Y., Ishioka K., Shima T., Kato T., Iwata S., Takahashi Y. K., Hirosawa S., Hono K.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   Vol. 468   page： 273-278   2018.12

Variation of Magnetization Dynamics of Co/Ni Multilayer by Capturing Magnetic Nanoparticles Reviewed

Otaki Y., Kato T., Okamoto S., Kikuchi N., Oshima D., Iwata S., Kitakami O.

IEEE TRANSACTIONS ON MAGNETICS   Vol. 54 ( 11 ) page： 6100804   2018.11

Hybrid memory layer with low Curie temperature CoPd/Pd multilayer for high-density magnetic random access memory cells Reviewed

W. Zhao, X. Dong, T. Kimura, T. Kato, D. Oshima, Y. Sonobe, Y. Kawato, S. Iwata

IEEE TRANSACTIONS ON MAGNETICS   Vol. 54 ( 11 ) page： 3401405   2018.11

Spin transfer torque switching of Co/Pd multilayers and Gilbert damping of Co-based multilayers Reviewed

Kimura Takumi, Dong Xiayin, Adachi Kanta, Oshima Daiki, Kato Takeshi, Sonobe Yoshiaki, Okamoto Satoshi, Kikuchi Nobuaki, Kawato Yoshiaki, Kitakami Osamu, Iwata Satoshi

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 57 ( 9 )   2018.9

Femtosecond resonant magneto-optical Kerr effect measurement on an ultrathin magnetic film in a soft X-ray free electron laser Reviewed

S. Yamamoto, Y. Kubota, K. Yamamoto, Y. Takahashi, K. Maruyama, Y. Suzuki, R. Hobara, M. Fujisawa, D. Oshima, S. Owada, T. Togashi, K. Tono, M. Yabashi, Y. Hirata, S. Yamamoto, M. Kotsugi, H. Wadati, T. Kato, S. Iwata, S. Shin, I. Matsuda

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 57 ( 9 ) page： 09TD02   2018.9

Magnetic anisotropy in Bismuth, Gallium substituted Neodymium iron garnet thin films on GGG substrates determined by FMR measurements Reviewed

J. Yamakita, G. Lou, T. Kato, S. Iwata, M. Nishikawa, T. Ishibashi

JAPANESE JOURNAL OF APPLIED PHYSICS   Vol. 57 ( 9 ) page： 09TC01   2018.9

Crystal Structures and Magnetic Properties of Silica and Polyethylene Glycol (PEG-4000) Encapsulated Zn0.5Ni0.5Fe2O4 Magnetic Nanoparticles Reviewed International coauthorship

J. Widakdo, N. Istikhomah, A. Rifianto, E. Suharyadi, T. Kato, S. Iwata

J. Phys.: Conference Series   Vol. 1101   page： 012068   2018.5

Effect of Co concentration on crystal structures and magnetic properties of Ni1-xCoxFe2O4 nanoparticles synthesized by co-precipitation method Reviewed International coauthorship

Utomo J., Agustina A. K., Suharyadi E., Kato T., Iwata S.

INTEGRATED FERROELECTRICS   Vol. 187 ( 1 ) page： 194-202   2018.4

Spin-valve giant magneto-resistance film with magnetostrictive FeSiB amorphous layer and its application to strain sensors Reviewed

Hashimoto Y., Yamamoto N., Kato T., Oshima D., Iwata S.

JOURNAL OF APPLIED PHYSICS   Vol. 123 ( 11 )   2018.3

Switching Field Distribution of MnGa Bit Patterned Film Fabricated by Ion Beam Irradiation Reviewed

Oshima D., Kato T., Iwata S.

IEEE TRANSACTIONS ON MAGNETICS   Vol. 54 ( 2 )   2018.2

Crystal Structures and Magnetic Properties of Polyethylene Glycol (PEG-4000) Encapsulated Zn0.5Ni0.5Fe2O4 Magnetic Nanoparticles Reviewed

Widakdo J., Istikhomah N., Rifianto A., Suharyadi E., Kato T., Iwata S.

INTERNATIONAL CONFERENCE ON THEORETICAL AND APPLIED PHYSICS   Vol. 1011   2018

Effect of Zn on dielectric properties of Mn-Zn spinel ferrite synthesized by coprecipitation

Yusmar Ade, Armitasari Linda, Suharyadi Edi

MATERIALS TODAY-PROCEEDINGS   Vol. 5 ( 7 ) page： 14955 - 14959   2018

Biomolecule detection using wheatstone bridge giant magnetoresistance (GMR) sensors based on CoFeB spin-valve thin film

Swastika P. Elda, Antarnusa G., Suharyadi E., Kato T., Iwata S.

INTERNATIONAL CONFERENCE ON THEORETICAL AND APPLIED PHYSICS   Vol. 1011   2018

Magneto-optical properties and magnetic anisotropy of Nd0.5Bi2.5Fe5-yGayO12 thin films on glass substrates Reviewed

Lou Gengjian, Kato Takeshi, Iwata Satoshi, Ishibashi Takayuki

OPTICAL MATERIALS EXPRESS   Vol. 7 ( 7 ) page： 2248-2259   2017.7

Spin transfer torque switching in exchangecoupled amorphous GdFeCo/TbFe bilayers for thermally assisted MRAM application Reviewed

Dai Bing, Guo Yong, Zhu Jiaqi, Kato Takeshi, Iwata Satoshi, Tsunashima Shigeru, Yang Lei, Han Jiecai

JOURNAL OF PHYSICS D-APPLIED PHYSICS   Vol. 50 ( 13 )   2017.4

Fabrication of Hard Magnetic Metallic Thin Films without Fe, Co, or Ni and Their Application Reviewed

T. Kato

MAGNETICS JAPAN   Vol. 12 ( 1 ) page： 5-12   2017.2

Crystal Structures and Magnetic Properties of Silica and Polyethylene Glycol (PEG-4000) - Encapsulated Zn0.5Ni0.5Fe2O4 Magnetic Nanoparticles

Widakdo J., Istikhomah N., Rifianto A., Suharyadi E., Kato T., Iwata S.

2017 IEEE 12TH NANOTECHNOLOGY MATERIALS AND DEVICES CONFERENCE (NMDC)     page： 149 - 150   2017

Effect of Zn Concentration on Crystal Structure and Magnetic Properties of ZnxNi(1-x)Fe(2)O(4) Nanoparticles Fabricated by Co-precipitation Method

Istikhomah N., Widakdo J., Rifianto A., Suharyadi E., Kato T., Iwata S.

2017 IEEE 12TH NANOTECHNOLOGY MATERIALS AND DEVICES CONFERENCE (NMDC)     page： 151 - 152   2017

The calcination temperature dependence of microstructural, vibrational spectra and magnetic properties of nanocrystalline Mn0.5Zn0.5Fe2O4 Reviewed

I. P. T. Indrayana, N. Siregar, E. Suharyadi, T. Kato, S. Iwata

J. Phys.: Conference Series   Vol. 776   page： 012021-1-7   2016.12

Spin-orbit torques in ferrimagnetic GdFeCo alloys Reviewed

N. Roschewsky, T. Matsumura, S. Cheema, F. Hellman, T. Kato, S. Iwata, S. Salahuddin

Appl. Phys. Lett.   Vol. 109   page： 112403-1-4   2016.9

Nano spin-diodes using FePt-NDs with huge on/off current ratio at room temperature Reviewed

K. Makihara, T. Kato, Y. Kabeya, Y. Mitsuyuki, A. Ohta, D. Oshima, S. Iwata, Y. Darma, M. Ikeda, S. Miyazaki

Scientific Reports   Vol. 6   page： 33409-1-7   2016.9

Effective Damping Constant and Current Induced Magnetization Switching of GdFeCo / TbFe Exchange-Coupled Bilayer Reviewed

T. Higashide, B. Dai, T. Kato, D. Oshima, S. Iwata

IEEE Magn. Lett.   Vol. 7   page： 3505605-1-5   2016.9

Ferromagnetic Resonance of a Single Magnetochiral Metamolecule of Permalloy Reviewed

T. Kodama, S. Tomita, T. Kato, D. Oshima, S. Iwata, S. Okamoto, N. Kikuchi, O. Kitakami, N. Hosoito, H. Yanagi

Phys. Rev. Appl.   Vol. 6 ( 2 ) page： 024016-1-9   2016.8

Ion irradiation induced magnetic transition of MnGa alloy films studied by X-ray magnetic circular dichroism and low-temperature hysteresis loops Reviewed

D. Oshima, M. Tanimoto, T. Kato, Y. Fujiwara, T. Nakamura, Y. Kotani, S. Tsunashima, S. Iwata

IEEE Trans. Magn.   Vol. 52 ( 2 ) page： 3201804-1-4   2016.7

Evaluation of damping constants for Co/Pt multilayer and CoPt alloy films Reviewed

Y. Kusanagi, S. Okamoto, N. Kikuchi, O. Kitakami, T. Kato, S. Iwata

IEEJ Transactions on Fundamentals and Materials   Vol. 136 ( 5 ) page： 317-323   2016.5

Nd0.5Bi2.5Fe5-yGayO12 thin films on Gd3Ga5O12 substrates prepared by metal-organic decomposition Reviewed

M. Sasaki, G. Lou, Q. Liu, M. Ninomiya, T. Kato, S. Iwata, T. Ishibashi

Jpn. J. Appl. Phys.   Vol. 55   page： 055501-1-7   2016.5

Nanoscale patterning of CrPt3 magnetic thin films by using ion beam irradiation Reviewed

E. Suharyadi, D. Oshima, T. Kato, S. Iwata

Results in Physics   Vol. 6   page： 196-188   2016.4

Structure and Magnetic Properties of (001) Oriented CoPt-Ag and CoPd-Ag Alloy Films Reviewed

T. Nagata, Y. Tokuoka, T. Kato, D. Oshima, S. Iwata

J. Magn. Soc. Jpn.   Vol. 40 ( 1 ) page： 13-17   2016.1

High Density Formation of FePt Alloy Nanodots Induced by Remote Hydrogen Plasma and Characterization of Their Magnetic Properties Reviewed

R. Fukuoka, H. Zhang, K. Makihara, Y. Tokuoka, T. Kato, S. Iwata, S. Miyazaki

Trans. Mat. Res. Soc. Jpn.   Vol. 40   page： 347-350   2015.12

Anomalous structural behavior in the metamagnetic transition of FeRh thin films from a local viewpoint Reviewed

Y. Wakisaka, Y. Uemura, T. Yokoyama, H. Asakura, H. Morimoto, M. Tabuchi, D. Oshima, T. Kato, S. Iwata

Phys. Rev. B   Vol. 92   page： 184408-1-7   2015.11

Ultrafast spin-switching of a ferrimagnetic alloy at room temperature traced by resonant magneto-optical Kerr effect using a seeded free electron laser Reviewed

Sh. Yamamoto, M. Taguchi, T. Someya, Y. Kubota, S. Ito, H. Wadati, M. Fujisawa, F. Capotondi, E. Pedersoli, M. Manfredda, L. Raimondi, M. Kiskinova, J. Fujii, P. Moras, T. Tsuyama, T. Nakamura, T. Kato, T. Higashide, S. Iwata, S. Yamamoto, S. Shin, I. Matsuda

Rev. Sci. Instrum.   Vol. 86 ( 8 ) page： 083901-1-5   2015.8

Modifications of Structure and Magnetic Properties of L10 MnAl and MnGa Films by Kr+ Ion Irradiation Reviewed

D. Oshima, M. Tanimoto, T. Kato, Y. Fujiwara, T. Nakamura, Y. Kotani, S. Tsunashima, S. Iwata

IEEE Trans. Magn.   Vol. 50 ( 12 ) page： 3203407-1-7   2014.12

Bit pattern formation of spinel ferromagnetic oxides by Kr ion implantation Reviewed

E. Kita, Y. Liu, Y. Utsumi, J. Morishita, K. Suzuki, T.Kato, T. Niizeki, K. Mibu, H.Yanagihara

J. Appl. Phys.   Vol. 115   page： 17B907-1-3   2014.5

Effect of Ag addition to L10 FePt and L10 FePd films grown by molecular beam epitaxy Reviewed

Y. Tokuoka, Y. Seto, T. Kato, S. Iwata

J. Appl. Phys.   Vol. 115   page： 17B716-1-3   2014.5

Magnetic Properties and Microstructures of Polyethylene Glycol (PEG)- Coated Cobalt Ferrite (CoFe2O4) Nanoparticles Synthesized by Coprecipitation Method Reviewed

E. Suharyadi, E. A. Setiadi, N. Shabrina, T. Kato, S. Iwata

Adv. Mat. Res.   Vol. 896   page： 126-133   2014.2

Growth of FePt encapsulated carbon nanotubes by thermal chemical vapor deposition Reviewed

Y. Fujiwara, T. Kaneko, K. Hori, S Takase, H. Sato, K. Maeda, T. Kobayashi, T. Kato, S. Iwata, M. Jimbo

J. Vac. Sci. Technol. A   Vol. 32   page： 02B114-1-5   2014.1

Controlling the Magnetic Properties of Cr-Implanted Co/Pt Reviewed

E. Suharyadi, T. Kato, S. Iwata

IEEE Trans. Magn.   Vol. 50 ( 1 ) page： 3000104-1-4   2014.1

Control of magnetic properties of MnGa films by Kr+ ion irradiation for application to bit patterned media Reviewed

D. Oshima, T. Kato, S. Iwata, S. Tsunashima

IEEE Trans. Magn.   Vol. 49 ( 7 ) page： 3608 - 3611   2013.7

Pulse width and temperature dependences of critical current density of spin transfer torque switching amorphous GdFeCo for thermally assisted MRAM Reviewed

B. Dai, T. Kato, S. Iwata, S. Tsunashima

IEEE Trans. Magn.   Vol. 49 ( 7 ) page： 3608-3611   2013.7

Magnetic property of FePt nanoparticles encaged in carbon nanotubes Reviewed

T. Kaneko, Y. Fujiwara, H. Sato, T. Kato, K. Maeda, S. Iwata, M. Jimbo, K. Hata, T. Kobayashi

Vacuum   Vol. 87   page： 187-190   2013.1

Structural dependent Gilbert damping in sputtered Co/Pd multilayers Reviewed

T. Kato, Y. Matsumoto, S. Okamoto, N. Kikuchi, S. Iwata, O. Kitakami, S. Tsunashima

IEEE Trans. Magn.   Vol. 48 ( 11 ) page： 3288 - 3291   2012.11

Bit patterned structure fabricated by Kr+ ion irradiation onto MnBiCu films Reviewed

Q. Xu, R. Kanbara, T. Kato, S. Iwata, S. Tsunashima

IEEE Trans. Magn.   Vol. 48 ( 11 ) page： 3406-3409   2012.11

Spin transfer torque switching of amorphous GdFeCo with perpendicular magnetic anisotropy for thermally assisted magnetic memories Reviewed

B.Dai, T.Kato, S.Iwata S.Tsunashima

IEEE Trans. Magn.   Vol. 48 ( 11 ) page： 3223-3226   2012.11

Control of Magnetic Properties of MnBiCu Thin Films by Kr+ Ion Irradiation Reviewed

Q. Xu, R. Kanbara, T. Kato, S. Iwata, S. Tsunashima

J. Appl. Phys.   Vol. 111   page： 07B906-1-3   2012.4

Observation of bit boundary in ion irradiation planer patterned CrPt3 using dark-field transmission electron microscope Reviewed

D. Oshima, E. Suharyadi, T. Kato, S. Iwata

J. Magn. Magn. Mat.   Vol. 324   page： 1617-1621   2012.1

Time resolved magnetization dynamics and damping constant of sputtered Co/Ni multilayers Reviewed

T. Kato, Y. Matsumoto, S. Okamoto, N. Kikuchi, O. Kitakami, N. Nishizawa, S. Iwata

IEEE Trans. Magn.   Vol. 47 ( 10 ) page： 3036 - 3039   2011.10

Arousal Effect of Physiological Magnetic Stimulation on Elder Person's Spine for Prevention of Drowsiness During Car Driving Reviewed

K. Mohri, T. Uchiyama, M. Yamada, T. Watanabe, Y. Inden, T. Kato, and S. Iwata

IEEE Trans. Magn.   Vol. 47 ( 10 ) page： 3066-3069   2011.10

Low-drift giant magnetoresistive field sensor using modulation of free-layer magnetization direction Reviewed

G. A. Wang, S. Arai, T. Kato, and S. Iwata

J. Phys. D: Appl. Phys.   Vol. 44 ( 23 ) page： 235003-1-5   2011.5

Study of the Domain Structure in Domain-wall Displacing type Field Sensor Reviewed

G. A. Wang, Y. Masuda, T. Kato, S. Iwata

J. Appl. Phys   Vol. 109 ( 7 ) page： 07E523-1-3   2011.4

Switching Field Distribution of Planar Patterned CrPt3 Nanodots Fabricated by Ion Irradiation Reviewed

E. Suharyadi, D. Oshima, T. Kato, S. Iwata

J. Appl. Phys.   Vol. 109 ( 7 ) page： 07B771-1-3   2011.4

Design and performance of domain wall displacing-type field sensors using a magnetic tunnel junction and a giant magnetoresistive device Reviewed

G. A. Wang, Y. Masuda, T. Kato, S. Iwata

J. Phys. D: Appl. Phys.   Vol. 43   page： 455001-1-5   2010.10

Spin transfer switching and interlayer coupling in CPP-GMR structures with GdFeCo free layer Reviewed

T. Kozawa, T. Kato, S. Iwata, S. Tsunashima

IEEJ Trans. Fundamentals and Materials   Vol. 130 ( 7 ) page： 631-635   2010.7

Recent progress of ion irradiation bit patterned media Invited

T. Kato, D. Oshima, E. Suharyadi, S. Iwata, S. Tsunashima

IEEJ Trans. Fundamentals and Materials   Vol. 130 ( 7 ) page： 613-620   2010.7

Magnetoresistance effect of granular films employing Co2FeAl0.5Si0.5 alloy Reviewed

K. Sato, Y. Fujiwara, T. Kato, M. Jimbo, T. Kobayashi

IEEJ Trans. Fundamentals and Materials   Vol. 130 ( 7 ) page： 626-630   2010.7

Fabrication of L12-CrPt3 alloy films using rapid thermal annealing for planar bit patterned media Reviewed

T. Kato, D. Oshima, Y. Yamauchi, S. Iwata, S. Tsunashima

IEEE Trans. Magn.   Vol. 46 ( 6 ) page： 1671-1674   2010.6

High Sensitivity GMR Magnetic Sensor Using Oscillatory Domain Wall Displacement Reviewed

G. Wang, S. Nakashima, S. Arai, T. Kato, S. Iwata

J. Appl. Phys.   Vol. 107 ( 9 ) page： 09E709-1-3   2010.5

High-Sensitivity GMR Sensor Using Domain Wall Oscillation Reviewed

S. Nakashima, S. Arai, T. Kato, S. Iwata, S. Tsunashima

J. Magn. Soc. Jpn.   Vol. 34 ( 2 ) page： 115-118   2010.3

Local exchange anisotropy of microstructured CoFe / MnIr (001) bilayers Reviewed

H. Kato, T. Kobayashi, T. Kato, S. Tsunashima, and S. Iwata

J. Phys.: Conference Series   Vol. 200 ( 7 ) page： 072052-1-4   2010.2

Compositional dependence of g-factor and damping constant of (Gd1-xREx)FeCo alloy films (RE = Yb, Tm, Er) Reviewed

R. Komiya, T. Kato, N. Nishizawa, S. Tsunashima, and S. Iwata

J. Phys.: Conference Series   Vol. 200 ( 4 ) page： 042010-1-4   2010.2

Perpendicular anisotropy and microstructure of MBE-grown FePt-Ag and FePt-MgO granular films Reviewed

R. Ikeda, M. Kagami, T. Kato, S. Iwata, and S. Tsunashima

J. Magn. Soc. Jpn.   Vol. 33 ( 6-2 ) page： 493-497   2009.11

Tunnel Magnetoresistance of CoFeAlSi-MgO Granular Films Reviewed

K. Sato, Y. Fujiwara, T. Kato, M. Jimbo, T. Kobayashi

J. Magn. Soc. Jpn.   Vol. 33 ( 6-2 ) page： 455-458   2009.11

Modification of magnetic properties and structure of Kr+ ion-irradiated CrPt3 films for planar bit patterned media Reviewed

T. Kato, S. Iwata, Y. Yamauchi, S. Iwata

J. Appl. Phys.   Vol. 106 ( 5 ) page： 053908   2009.9

Planar patterned media fabricated by ion irradiation into CrPt3 ordered alloy films Reviewed

T. Kato, Y. Yamauchi, S. Iwata, S. Tsunashima, K. Matsumoto, T. Morikawa, K. Ozaki

J. Appl. Phys.   Vol. 105 ( 7 ) page： 07C117   2009.4

Thermomagnetic writing on deep submicron patterned TbFe films by nanosecond current pulse Reviewed

L. You, T. Kato, S. Tsunashima, and S. Iwata

J. Magn. Magn. Mat.   Vol. 321 ( 8 ) page： 1015-1018   2009.4

Compositional dependence of g-factor and damping constant of GdFeCo amorphous alloy films Reviewed

T. Kato, K. Nakazawa, R. Komiya, N. Nishizawa, S. Tsunashima, S. Iwata

IEEE Trans. Magn.   Vol. 44 ( 11 ) page： 3380 - 3383   2008.11

Effect of Sputtering Deposition Process on Magnetic Properties in Magnetic Multilayers Reviewed

Y. Maeda, Y. Suzuki, Y. Sakashita, S. Iwata, T. Kato, S. Tsunashima, H. Toyoda, H. Sugai

Jpn. J. Appl. Phys.   Vol. 47 ( 10 ) page： 7879-7875   2008.10

Dynamic Heating in Micron- and Submicron-Patterned TbFe Films Reviewed

L. You, T. Kato, S. Tsunashima, S. Iwata

Jpn. J. Appl. Phys.   Vol. 47 ( 1 ) page： 146-149   2008.1

Temperature Dependence of Exchange Anisotropy for (001) Oriented Mn89Pt11/Ferromagnetic Bilayers Reviewed

T. Yamato, T. Kume, T. Kato, S. Iwata, and S. Tsunashima

J. Magn. Magn. Mat.   Vol. 310 ( 2-3 ) page： e783-785   2007.3

Thickness Dependence of Exchange Anisotropy for (001) Oriented Mn89Pt11/NiFe Bilayers Reviewed

T. Kume, T. Yamato, T. Kato, S. Iwata, and S. Tsunashima

J. Magn. Magn. Mat.   Vol. 310 ( 2-3 ) page： 2298-2300   2007.3

Magnetic Force Microscopy Study of Thermomagnetic Writing on Micron- and Submicron-Patterned TbFe Films Using Current Pulses Reviewed

L. You, T. Kato, S. Tsunashima, and S. Iwata

Jpn. J. Appl. Phys.   Vol. 46 ( 3A ) page： 1003-1005   2007.3

Perpendicular anisotropy of MBE-grown FePt-Ag granular films Reviewed

T. Konagai, Y. Kitahara, T. Itoh, T. Kato, S. Iwata, S. Tsunashima

J. Magn. Magn. Mat.   Vol. 310   page： 2662-2664   2007.3

X-ray magnetic circular dichroism studies of (001)-oriented NiFe / Mn100-xPtx exchange bilayers Reviewed

T. Yamato, T. Kume, T. Kato, S. Tsunashima, T. Nakamura, Y. Fujiwara, and S. Iwata

J. Appl. Phys.   Vol. 100   page： 113907-1-6   2006.12

Simulation of Thermomagnetic Recording Process for High Density Magnetic Field Modulation Method Reviewed

N. Taniguchi, T. Kato, S. Tsunashima, and S. Iwata

J. Magn. Soc. Jpn.   Vol. 6 ( 2 ) page： 596-599   2006.11

Magnetic Properties of Lithographically Patterned Co/Pd Nanostructures Obtained by E-Beam and Ga Ion Irradiation Reviewed

Suharuyadi Edi, T. Kato, S. Tsunashima, and S. Iwata

IEEE Trans. Magn.   Vol. 42 ( 10 ) page： 2972-2974   2006.10

Dependences of Giant Magnetoresistance in Co/Cu Multilayers on Sputtering Conditions Reviewed

C. C. Chen, Y. Suzuki, T. Kato, S. Iwata, S. Tsunashima, H. Toyoda, and H. Sugai

Jpn. J. Appl. Phys.   Vol. 45 ( 10B ) page： 8466-8468   2006.10

Magneto-optical Kerr effects of yttrium-iron garnet thin films incorporating gold nanoparticles Reviewed

S. Tomita, T. Kato, S. Tsunashima, S. Iwata, M. Fujii, and S. Hayashi

Phys. Rev. Lett.   Vol. 96 ( 16 ) page： 167402-1-4   2006.4

Suppression of Super High-Energy Species by VHF-DC Superimposed Magnetron Sputter Plasma Reviewed

Y. Sakashita, Y. Takagi, T. Kato, H. Toyoda, S. Iwata, S. Tsunashima, and H. Sugai

Trans. Mat. Res. Soc. Jpn.   Vol. 32   page： 481-484   2006

Modification of the Microstructure and Magnetic Properties of Ga-Ion-Irradiated Co/Pd Multilayer Film for Future Planar Media Reviewed

Edi Suharyadi, S. Natsume, T. Kato, S. Tsunashima, and S. Iwata

Trans. Magn. Soc. Jpn.   Vol. 5 ( 3 ) page： 125-130   2005.5

Exchange anisotropy of (001) oriented Mn80Ir20/NiFe epitaxial bilayers Reviewed

T. Kume, T. Kato, S. Iwata, and S. Tsunashima

J. Magn. Magn. Mat.   Vol. 286   page： 243-247   2005

Microstructures and Magnetic Properties of the FIB Irradiated Co/Pd Multilayer Films Reviewed

Edi Suharyadi, S. Natsume, T. Kato, S. Tsunashima, S. Iwata

IEEE Trans. Magn.   Vol. 41 ( 10 ) page： 3595-3597   2005

Perpendicular Anisotropy of MBE-Grown FePt Granular Films Reviewed

S. Iwata, T. Itoh, T. Kato, and S. Tsunashima

IEEE Trans. Magn.   Vol. 41 ( 10 ) page： 3217-3219   2005

Perpendicular magnetic anisotropy and Kerr spectra of (Cr1-xVx)Pt3 ordered alloy films Reviewed

T. Kato, N. Uno, S. Tsunashima, and S. Iwata

Trans. Magn. Soc. Jpn.   Vol. 4 ( 4-2 ) page： 310-313   2004.11

Simulation of thermomagnetic recording process using MFM method: effect of field gradient (Invited) Invited Reviewed

T. Kato, M. Shimodaira, T. Koyama, S. Tsunashima, and S. Iwata

Trans. Magn. Soc. Jpn.   Vol. 4 ( 4-2 ) page： 172-177   2004.11

Uncompensated spins in a micro-patterned CoFeB/MnIr exchange bias system Reviewed

T. Eimueller, T. Kato, T. Mizuno, S. Tsunashima, C. Quitmann, T. Ramsvik, S. Iwata, and G. Schutz

Appl. Phys. Lett.   Vol. 85 ( 12 ) page： 2310 - 2312   2004.9

Scanning tunneling microscope observation and magnetic anisotropy of MBE-Grown Fe/Pt superlattices with (111) and (001) orientations Reviewed

S. Yamamoto, T. Kato, S. Iwata, S. Tsunashima, and S. Uchiyama

J. Appl. Phys.   Vol. 95 ( 11 ) page： 7285-7287   2004.8

Magnetic Anisotropy of MBE Grown MnPt3 and CrPt3 Ordered Alloy Films Reviewed

T. Kato, H. Ito, K. Sugihara, S. Tsunashima, and S. Iwata

J. Magn. Magn. Mat.   Vol. 272-276   page： 778-779   2004.5

Exchange anisotropy of MBE grown Mn1-xPtx/NiFe Bilayers with (001) orientation Reviewed

T. Kume, Y. Sugiyama, T. Kato, S. Iwata, and S. Tsunashima

J. Magn. Magn. Mat.   Vol. 272-276   page： e827-e828   2004.5

Exchange anisotropy of (001) oriented Mn1-xPtx/NiFe epitaxial films Reviewed

T. Kume, Y. Sugiyama, T. Kato, S. Iwata, and S. Tsunashima

J. Appl. Phys.   Vol. 93 ( 10 ) page： 6599-6601   2003.5

*Simulation of high density thermomagnetic recording process with magnetic field modulation method Reviewed

T. Koyama, T. Kato, and S. Tsunashima

Proc. of SPIE   Vol. 5060   page： 95-98   2003

Simulation of thermomagnetic recording process using magnetic field modulation method Reviewed

T. Koyama, T. Kato, S. Iwata, and S. Tsunashima

Trans. Magn. Soc. Jpn.   Vol. 2 ( 4 ) page： 271-272   2002.10

Exchange anisotropy in epitaxial Mn1-xPtx/NiFe bilayers Reviewed

T. Kume, E. Nagae, Y. Sugiyama, T. Kato, S. Iwata, and S. Tsunashima

IEEE Trans. Magn.   Vol. 38 ( 5 ) page： 2785-2787   2002.9

Magnetic Circular Dichroism of Polycrystalline (Mn1-xCrx)Pt3 and Epitaxial CrPt3 Alloy Films Reviewed

T. Kato, K. Sugihara, H. Ito, A. Kobayashi, Y. Fujiwara, S. Iwata, and S. Tsunashima

Trans. Magn. Soc. Jpn.   Vol. 2 ( 2 ) page： 98-103   2002.5

Magnetic circular dichroism spectra of MnPt3/Co multilayers Reviewed

T. Kato, S. Iwata, S. Tsunashima, and Y. Fujiwara

J. Magn. Magn. Mat.   Vol. 240   page： 517-519   2002.2

Temperature dependence of giant magneto-resistance in PtMn and Fe2O3 based specular spin valves Reviewed

T. Kato, K. Miyashita, S. Iwata, S. Tsunashima, H. Sakakima, Y. Sugita, and Y. Kawawake

J. Magn. Magn. Mat.   Vol. 240   page： 168-170   2002.2

Magnetic domain structure of NiFe and MnIr/NiFe elements patterned by focused ion beam Reviewed

T. Kato, K. Suzuki, S. Tsunashima, and S. Iwata

Jpn. J. Appl. Phys.   Vol. 41 ( 10A ) page： L1078-1080   2002

Exchange anisotropy in NiFe/NiO/CoPt trilayers Reviewed

T. Takahashi, T. Kato, S. Iwata, and S. Tsunashima

Surface Science   Vol. 493   page： 731-736   2001.11

Magnetic properties of polycrystalline and epitaxial Cr1-xMnxPt3 alloy films Reviewed

T. Kato, K. Sugihara, A. Kobayashi, S. Iwata, and S. Tsunashima

IEEE Trans. Magn.   Vol. 37 ( 4 ) page： 2414-2416   2001.7

Simulation of thermomagnetic recording using extended Huth's equation Reviewed

N. Hashida, T. Kato, S. Iwata, and S. Tsunashima

J. Magn. Soc. Jpn.   Vol. 25 ( 3-2 ) page： 303-306   2001.3

Structure and magnetic properties of epitaxial CrPt3 and Cr0.8Mn0.2Pt3 alloy films Reviewed

K. Sugihara, H. Ito, T. Kato, S. Iwata, and S. Tsunashima

J. Magn. Soc. Jpn.   Vol. 25 ( 3-2 ) page： 234-237   2001.3

X-ray magnetic circular dichroism of Gd/Fe multilayers Reviewed

T. Kato, Y. Fujiwara, K. Yano, S. Tsunashima, S. Iwata, and M. Masuda

IEEE Trans. Magn.   Vol. 36 ( 5 ) page： 2909-2911   2000.5

Exchange anisotropy in MBE grown MnPt/NiFe bilayers Reviewed

Y. Ozaki, K. Shimoyama, T. Kato, S. Iwata, and S. Tsunashima

IEEE Trans. Magn.   Vol. 36 ( 5 ) page： 2888-2891   2000.5

Magnetization process in exchange-coupled NiFe/NiO/CoPt trilayers Reviewed

T. Takahashi, T. Kato, S. Iwata, and S. Tsunashima

J. Magn. Soc. Jpn.   Vol. 24 ( 4-2 ) page： 623-626   2000.4

Large Kerr Rotation in Ordered CrPt3 Films Reviewed

J. Cho, M. Park, H-S. Kim, T. Kato, S. Iwata, and S. Tsunashima

J. Appl. Phys.   Vol. 86 ( 6 ) page： 3149-3151   1999.9

Exchange Coupling in MBE Grown MnPt/NiFe Bilayers Reviewed

K. Shimoyama, T. Kato, S. Iwata, and S. Tsunashima

IEEE Trans. Magn.   Vol. 35 ( 5 ) page： 3922-3924   1999.9

Structure and MCD Effect of Rare-Earth-Transition Metal Amorphous Multilayer Reviewed

Y. Fujiwara, K. Yano, T. Kato, X. Y. Yu, S. Tsunashima, S. Iwata, T. Kobayashi, and M. Masuda

J. Magn. Soc. Jpn.   Vol. 23 ( S1 ) page： 39-42   1999.7

Magneto-Optical Spectra and Magnetic Anisotropy of MBE-Grown CoPt Alloy Films with L10 and L11 Ordered Structure(s) Reviewed

T. Kato, S. Iwata, S. Yamashita, H. Takewaka, T. Kogiso, and S. Tsunashima

J. Magn. Soc. Jpn.   Vol. 23 ( S1 ) page： 47-50   1999.7

Exchange anisotropy in MBE grown MnPt/NiFe bilayers Reviewed

K. Shimoyama, T. Kato, S. Iwata, and S. Tsunashima

J. Magn. Soc. Jpn.   Vol. 23 ( 4-2 ) page： 1245-1248   1999.4

Magnetic and Magneto-Optical Properties of MnPt3/CoPt3 Superlattices Reviewed

F. Fukae, T. Kato, S. Iwata, and S. Tsunashima

J. Magn. Soc. Jpn.   Vol. 22 ( 4-2 ) page： 317-320   1998.6

Perpendicular Magnetic Anisotropy and Magneto-Optical Spectra of MBE Grown MnPt3/Co Multilayers Reviewed

T. Kato, S. Iwata, M. Kokuryu, and S. Tsunashima

J. Phys. Soc. Jpn.   Vol. 22 ( S2 ) page： 85-88   1998.6

Magneto-Optical Spectra of Ultrathin Co Films Sandwiched by Pt Layers Reviewed

T. Kato, S. Oikawa, S. Iwata, J. Yamada, and S. Tsunashima

J. Phys. Soc. Jpn.   Vol. 22 ( S2 ) page： 201-204   1998.6

Magneto-Optical Spectra of (Mn1-xMx)Pt3 (M = Fe, Co) Ordered Alloy Films Reviewed

T. Kato, S. Iwata, M. Yasui, K. Fukawa, and S. Tsunashima

J. Magn. Magn. Mat.   Vol. 177-181   page： 1427-1428   1998.3

Magnetic and Magneto-Optical Properties of MnPt3/Co Multilayer Reviewed

M. Kokuryu, T. Kato, S. Iwata, and S. Tsunashima

J. Appl. Phys.   Vol. 81 ( 8 ) page： 4779-4781   1997.4

Magneto-Optical Spectra of (Mn1-xFex)Pt3 Ordered Alloy Films Reviewed

T. Kato, S. Iwata, M. Yasui, and S. Tsunashima

J. Appl. Phys.   Vol. 81 ( 8 ) page： 5438-5440   1997.4

Magneto-Optical Spectra of MnPt3 Alloy Films (Invited) Invited Reviewed

S. Iwata, T. Kato, and S. Tsunashima

J. Magn. Soc. Jpn.   Vol. 20 ( S1 ) page： 427-432   1996.10

Large Magneto-Optical Effect of MnPt3 Ordered Alloy Films Invited Reviewed

S. Iwata, T. Kato and S. Tsunashima

J. Magn. Soc. Jpn.   Vol. 20 ( 1 ) page： 27-32   1996

Magnetic Magneto-optical Properties of MnPt3 Alloy Films Reviewed

T. Kato, S. Iwata, S. Tsunashima, and S. Uchiyama

J. Magn. Soc. Jpn.   Vol. 19 ( 2 ) page： 205-208   1995.4

*Magneto-Optical Effect in MnPt3 Alloy Films Reviewed

T. Kato, H. Kikuzawa, S. Iwata, S. Tsunashima, and S. Uchiyama

J. Magn. Magn. Mat.   Vol. 140-144   page： 713 - 714   1995.3

Spin Orbit Torque Magnetization Switching of Tb/Gd/FeCo Multilayers deposited on Ta layer

Y. Fujita, D. Oshima, S. Takahashi, Y. Hirayama, T. Kato

2023.9.29 

Perpendicular magnetic anisotropy of W-Cr/Fe/MgO trilayer films grown on MgO(001)

Y. Yoshida, D. Oshima, H. Yoshikawa, A. Tsukamoto, T. Kato

2023.9.27 

Spin- and polarity-switchable zero-bias photocurrents in a polar ferromagnetic metamaterial

H. Taketani, T. Kato, M. Matsubara

2023.9.17 

Measurement of Magnetization Dynamics by Ultrafast Pulsed Laser "Measurement and Control of Magnetization Dynamics of Spintronics Materials" (Invited) Invited

T. Kato

2023.9.9 

Construction and Mechanisms of a Recyclable Green-Synthesized CoFe2O4/TiO2 Nanocomposites Photocatalyst for Degradation of Organic Pollutant International coauthorship International conference

D. L. Puspitarum, N. I. Istiqomah, D. A. Larasati, A. Kusumaatmaja, H. Aliah, D. Oshima, T. Kato, E. Suharyadi

IcAUMS 2023  2023.8.14 

Heavy Metal Ion Removal in an Aqueous Environment Utilizing Magnetically Separable Green Synthesized Fe3O4/Cdots Nanocomposite Adsorbents International coauthorship International conference

E. K. Sari, R. M. Tumbelaka, H. Ardiyanti, N. I. Istiqomah, Chotimah, M. Arfin, D. Oshima, T. Kato, E. Suharyadi

IcAUMS 2023  2023.8.14 

Current Induced Magnetization Switching for Ultra-high Density Magnetic Random Access Memory Cells (Invited) Invited International conference

T. Kato, D. Pan, D. Oshima

International Conference on Processing & Manufacturing of Advanced Materials 2023   2023.7.3 

Spin Orbit Torques Magnetization Switching in Tb/Gd/FeCo Multilayers International conference

Y. Fujita, S. Yanai, D. Oshima, S. Takahashi, Y. Hirayama, T. Kato

INTERMAG 2023 Conference  2023.5.17 

Electrodeposited CoPt multilayered-nanowire for 3D memory device International conference

M. M. Hasan, T. Huang, M. Saito, Y. Takamura, D. Oshima, T. Kato, T. Homma

INTERMAG 2023 Conference  2023.5.18 

Current Induced Switching of Co/Pd Memory Layer in CPP-GMR with Perpendicularly Magnetized SAF Pinned Layer International conference

D. Pan, Z. Cao, D. Oshima, T. Kato

INTERMAG 2023 Conference  2023.5.17 

Fabrication of GMR Sensors with Antiphase Magnetization Modulation and Closed-loop Operation International conference

K. Komuro, D. Ohima, T. Kato

INTERMAG 2023 Conference  2023.5.16 

Electric Potential-Induced Localized Surface Plasmon Resonance of Fe3O4/Ag Composite Nanoparticles International coauthorship International conference

M. Riswan, N. Adrianto, I. M. Yahya, N. I. Istiqomah, A. M. Panre, Juharni, S. Wahyuni, M. Arifin, I. Santoso, T. Kato, E. Suharyadi

INTERMAG 2023 Conference  2023.5.19 

Magnetic Hyperthermia Properties of Green Synthesized CoFe2O4/ZnS Nanocomposites utilizing Moringa Oleifera Extract International coauthorship International conference

D. A. Larasati, D. L. Puspitarum, M. Y. Darmawan, N. I. Istiqomah, J. Partini, T. Kato, E. Suharyadi

INTERMAG 2023 Conference  2023.5.19 

Generation of zero-bias photocurrents in a polar ferromagnetic metamaterial

H. Taketani, T. Kato, M. Matsubara

2023.3.22 

Current Induced Magnetization Switching in Perpendicularly Magnetized (Mn-Cr)AlGe/W Bilayer Samples

T. Kubota, T. Kato, S. Honda, Y. Sonobe, K. Takanashi

2023.3.15 

Composition Dependence of the Buffer Layer of the Magnetic Properties of the Non-equilibrium Phase Magnetic Garnet Thin Films (II)

K. Mori, T. Nishi, T. Kato, M. Kawahara, M. Nishikawa, T. Ishibashi

2023.3.16 

Research on improvement gyromagnetic ratio of Bismuth-substituted magnetic garnet

W. Asano, T. Nishi, D. Oshima, T. Kato, K. Lee, M. Kawahara, M. Nishikawa, T. Ishibashi

2023.3.17 

Perpendicular magnetic anisotropy of W-Cr/Fe/MgO trilayers deposited on MgO(001) substrates

Y. Yoshida, D. Oshima, T. Kato

2023.3.3 

Magnetic Structures related to Skyrmion Bags and their applications in Multilayers

T. Karino, D. Shimizu, D. Oshima, T. Kato, N. Ikarashi, M. Nagao

2023.2.2 

Perpendicular magnetic anisotropy in (001) oriented W-Cr/Fe/MgO trilayers

Y. Yoshida, D. Oshima, T. Kato

2023.2.2 

Fundamental study of feedback-type GMR sensors using antiphase magnetization modulation

K. Komuro, D. Oshima, T. Kato

2023.2.2 

Current Induced Magnetization Switching of CPP-GMR with Perpendicular Magnetized SAF Pinned Layer

D. Pan, Z. Cao, D. Oshima, T. Kato

2022.12.8 

Annealing Temperature Dependence of Perpendicular Magnetic Anisotropy and Damping Constant of MgO/CoFe/Pt Trilayer Films

Y. Konishi, D. Oshima, T. Kato

2022.11.25 

Characterization of EuBi2Fe5-xGaxO12 thin films by ferromagnetic resonance measurements

W. Asano, T. Nishi, D. Oshima, T. Kato, L. Kiejin, M. Kawahara, M. Nishikawa, T. Ishibashi

2022.11.25 

Current induced magnetization switching in (Mn-Cr)AlGe films showing perpendicular magnetization International conference

T. Kubota, S. Honda, Y. Sonobe, T. Kato, K. Takanashi

The 67th Annual Conferenc on Magnetism and Magnetic Materials  2022.11.2 

Fabrication of beta-Mn type CoZnMn(001) film on MgO single crystal substrate International conference

D. Oshima, R. Mitsuhashi, N. Ikarashi, T. Kato, M. Nagao

The 67th Annual Conferenc on Magnetism and Magnetic Materials  2022.11.3 

Effect of annealing on magnetic anisotropy and damping constant of MgO/CoFe/Pt trilayer films

Y. Konishi, T. Kato, D. Oshima

2022.9.6 

Spin orbit torques of Gd / FeCo multilayers on Ta layer

S. Yanai, D. Oshima, S. Takahashi, Y. Hirayama, T. Kato

2022.9.8 

Control of magnetic moment of FeSiBNb film by strain

Y. Kutsuna, Y. Fujiwara, D. Oshima, T. Kato, M.Jimbo

2022.9.7 

Magnetic Properties of Fe-Ga-M Thin Film and Effect of Annealing Temperature

K. Suzuki, Y. Fujiwara, D, Oshima, T. Kato, M. Jimbo

2022.9.7 

Fabrication of feedback-type GMR sensors using antiphase magnetization modulation

K. Komuro, D. Oshima, T. Kato

2022.9.6 

Magnetization dynamics of FeCo/Cu/GdFeCo trilayers triggered by ultrashort pulse laser

K. Seguchi, D. Oshima, T. Kato

2022.9.6 

Characterization of EuBi2Fe5-xGaxO12 thin films by Ferromagnetic Resonance Measurements

W. Asano, T. Nishi, D. Oshima, T. Kato, K. Lee, M. Kawahara, M. Nishikawa, T. Ishibashi

2022.9.6 

beta-Mn type CoZnMn thin film epitaxially grown on single crystal substrate

D. Oshima, R. Mitsuhashi, N. Ikarashi, T. Kato, M. Nagao

2022.9.6 

Current Induced Magnetization Switching for Ultra-high Density Memory Devices (Keynote) International conference

T. Kato

2nd International Conference on Magnetism and Its Applications  2022.6.2 

Photocatalytic Activity of Green-Synthesized Fe3O4/TiO2 Magnetic Nanoparticles International conference

R. M. Tumbelaka, N. I. Istiqomah, T. Kato, D. Oshima, E. Suharyadi

2nd International Conference on Magnetism and Its Applications  2022.6.3 

Magnetization Dynamics of GdFeCo/Cu/FeCo Trilayers Triggered by Ultrashort Pulsed Laser International conference

K. Seguchi, D. Oshima, T. Kato

Magnetics and Optics Research International Symposium 2022  2022.5.17 

Spin Orbit Torques in Ferrimagnetic Gd/FeCo Multilayers International conference

S. Yanai, D. Oshima, S. Takahashi, Y. Hirayama, T. Kato

Magnetics and Optics Research International Symposium 2022  2022.5.18 

Peculiar Temperature Dependence of Magneto-optic Kerr Rotation in Pt/Co/Spacer (Ir, Pt)/Cr2O3/Pt Thin Film International conference

Y. Shiratsuchi, T. Okano, H. Ekawa, H. Sakurai, K. Toyoki, T. Kato, R. Nakatani

Magnetics and Optics Research International Symposium 2022  2022.5.19 

Composition Dependence of the Buffer Layer of the Magnetic Properties of the Non-equilibrium Phase Magnetic Garnet Thin Films

K. Mori, T. Nishi, T. Kato, M. Kawahara, M. Nishikawa, T. Ishibashi

2022.3.23 

Effect of high TC interface layer on the spin-transfer torque switching of high TC / low TC hybrid memory layer

W. Zhao, T. Kato, D. Oshima, S. Iwata

Magnetization Dynamics of GdFeCo/Cu/FeCo triple layers by ultrafast pulse

K. Seguchi, T. Kato, D Oshima

Enhancement of spin-orbit torques by the change of uniaxial in-plane magnetic anisotropy in Py/Pt bilayers on a single crystal LiNbO3 substrate

M. Ito, A. Yamaguchi, D. Oshima, T. Kato, M. Shima, K. Yamada

Changes in the spin Seebeck voltage with Bi composition in BixY3-xFe5O12 films synthesized by sol-gel method

M. Yamamoto, S. Masaki, Y. Shiota, T. Moriyama, T. Kato, T. Ono, M. Shima, K. Yamada

Effect of high TC interface layer in high TC/ low TC hybrid memory layer on thermally assisted spin-transfer-torque switching International conference

W. Zhao, T. Kato, D. Oshima, S. Iwata

The 15th Joint MMM-INTERMAG Conference 

Change in longitudinal spin Seebeck voltage with microstructure in YIG films prepared by sol-gel method International conference

M. Yamamoto, S. Masaki, H. Matsui, Y. Shiota, T. Moriyama, T. Kato, T. Ono, M. Shima, K. Yamada

The 15th Joint MMM-INTERMAG Conference 

Enhancement of spin-orbit torques using change of uniaxial in-plane magnetic anisotropy in Py/Pt bilayers on a single crystal Y-Cut 128° LiNbO3 substrate International conference

M. Ito, A. Yamaguchi, D. Oshima, T. Kato, M. Shima, K. Yamada

International Confernce on Materials and Systems for Sustainability 2021 

Fabrication of epitaxially grown β-Mn type CoZnMn film International conference

D. Oshima, M. Kawai, R. Mitsuhashi, S. Hirata, N. Ikarashi, T. Kato, M. Nagao

International Confernce on Materials and Systems for Sustainability 2021 

The study of interface layer in hybrid memory layer for thermally assisted STT-MRAM cells International conference

W. Zhao, T. Kato, D. Oshima, S. Iwata

International Confernce on Materials and Systems for Sustainability 2021 

Magnetic anisotropy of highly bismuth-substituted rare-earth (Y, Pr, Nd, Sm and Er) iron garnet thin films International conference

T. Ishibashi, R. Urakawa, M. Nishikawa, T. Nishi, D. Oshima, T. Kato

International Confernce on Materials and Systems for Sustainability 2021 

Development of strain sensor with granular film 2

S. Ueno, K. Temma, T. Uwabe, Y. Fujiwara, D. Oshima, T. Kato, M. Jimbo

Effect of high TC interface layer on the thermally assisted STT switching of high TC / low TC hybrid memory layer

W. Zhao, T. Kato, D. Oshima, S. Iwata

LiNbO3単結晶基板上の2層構造Py/Ptにおける面内一軸磁気異方性によるスピン軌道トルクの変化

伊藤将慶，山口明啓，大島大輝，加藤剛志，嶋睦宏，山田啓介

第45回日本磁気学会学術講演会 

Thermally assisted switching of MRAM cell using hybrid memory layer with different Curie temperatures (Invited) Invited International conference

T. Kato, W. Zhao, D. Oshima, S. Iwata

International Conference n Processing and Manufacturing and Advanced Materials 2020 

Electric-field modulation of perpendicular magnetic anisotropy and damping constant in MgO/Co/Pt trilayers International conference

A. Sakoguchi, T. Kato, D. Oshima, S. Iwata

INTERMAG 2021 Conference 

Characterization of magnetic anisotropy of highly bismuth-substituted rare-earth iron garnet thin films

R. Urakawa, M. Nishikawa, M. Kawahara, D. Oshima, T. Kato, T. Ishibashi

2021.3.26 

Evaluation of spin-orbit torques in 2-layer structure of Py /Pt on a single crystal of LiNbO3 substrate

M. Ito, K. Kondo, A. Yamaguchi, D. Oshima, T. Kato, M. Shima, K. Yamada

2021.3.18 

Influence of Substrate Temperature on Self-Assembling Formation of High Density FePt-Nanodots Assisted by Remote Hydrogen Plasma

S. Honda, H. Furuhata, A. Ohta, M. Ikeda, D. Oshima, T. Kato, K. Makihara, S. Miyazaki

2021.3.19 

Electric-field modulation of the magnetization dynamics in MgO/Co/Pt trilayers

A. Sakoguchi, D. Oshima, S. Iwata, T. Kato

2021.3.5 

Development of strain sensor with granular film

T. Uwabe, Y. Fujiwara, S. Iwata, T. Kato, D. Oshima

2020.12.17 

Thermally assisted STT switching of hybrid memory layer using CoPd/Pd and Co/Pd multilayers

W. Zhao, T. Kato, D. Oshima, Y. Sonobe, S. Takahashi, S. Iwata

2020.12.15 

Electric field effect of magnetic anisotropy and damping constant in MgO/Co/Pt trilayers

A. Sakoguchi, D. Oshima, S. Iwata, T. Kato

2020.12.17 

MgO/Co/Pt積層膜における磁気異方性及び磁化ダイナミクスの電界効果

砂古口藍子，大島大輝，加藤剛志，岩田聡

2020年度物質・デバイス領域共同研究拠点展開共同研究A研究会  2020.12.2 

低キューリ温度[CoPd/Pd]を用いた複合メモリ層の熱アシストSTT磁化反転

趙望臻，大島大輝，加藤剛志，岩田聡

2020年度物質・デバイス領域共同研究拠点展開共同研究A研究会  2020.12.2 

Perpendicular anisotropy and damping of MgO/Fe/Au trilayers with broken inversion symmetry International conference

N. Kamiya, T. Kato, D. Oshima, S. Iwata

Annual Conference on Magnetism and Magnetic Materials 2020  2020.11.2 

Thermally assisted STT switching of hybrid memory layer consisting of low TC CoPd/Pd and high TC Co/Pd multilayers International conference

W. Zhao, T. Kato, D. Oshima, Y. Sonobe, S. Takahashi, S. Iwata

IEEE International Magnetics Conference 2020  2020.5.7 

Optical Control of Spin-polarized Current in a Magnetic Metamaterial

M. Shigefuji, T. Kobayashi, Y. Takata, T. KatoA D. Oshima, S. Iwata, M. Matsubara

2020.3.16 

フェリ磁性GdFeCo/Ta積層膜におけるスピン軌道トルク

加藤剛志

2019年度物質・デバイス領域共同研究拠点展開共同研究B研究会  2020.3.10 

MgO/Fe/AuおよびAu/Fe/Au積層膜の磁化ダイナミクス

神谷尚輝，大島大輝，加藤剛志，岩田聡

電気学会マグネティックス研究会  2020.3.6 

Magnetization dynamics in MgO/Fe/Au and Au/Fe/Au trilayers

N. Kamiya, D. Oshima, T. Kato, S. Iwata

2020.1.24 

Perpendicular magnetic anisotropy and structure of Fe3O4/Cr sputtered film followed by annealing

D. Oshima, T. Kato, S. Iwata

2020.1.24 

Thermally assisted STT switching of hybrid memory layer using low Curie temperature CoPd/Pd multilayer

W. Zhao, T. Kato, D. Oshima, S. Iwata

2020.1.24 

Highly (001) oriented MnAl film fabricated on CoGa buffer layer International conference

D. Oshima, T. Kato, S. Iwata

Annual Conference on Magnetism and Magnetic Materials 2019  2019.11.6 

Thermally assisted STT switching MRAM cell using hybrid memory layer consist of CoPd/Pd and Co/Pd multilayers International conference

W. Zhao, T. Kato, D. Oshima, Y. Sonobe, S. Takahashi, S. Iwata

Annual Conference on Magnetism and Magnetic Materials 2019  2019.11.7 

(001)-textured MnGa ultrathin films grown on thermally oxidized Si substrate using CoGa buffer layer International conference

Y. Miwa, D. Oshima, T. Kato, S. Iwata

Annual Conference on Magnetism and Magnetic Materials 2019  2019.11.8 

X-ray magnetic circular dichroism studies on ion irradiated MnGa films International conference

T. Kato, D. Oshima, S. Iwata

International Conference on Materials and Systems for Sustainability 2019  2019.11.2 

Magnetic anisotropy of Bi-substituted yttrium iron garnet films prepared by MOD method International conference

T. Ishibashi, G. Lou, J. Yamakita, M. Nishikawa, T. Kato, S. Iwata

International Conference on Materials and Systems for Sustainability 2019 

Compositional dependence of spin orbit torques in SiN / GdFeCo / Ta films International conference

K. Kawakami, D. Oshima, T. Kato, S. Iwata

International Conference on Materials and Systems for Sustainability 2019 

Voltage control of spin Hall switching in perpendiculary magnetized MgO/Co/Pt trilayers International conference

K. Kunishima, X. Zhou, D. Oshima, T. Kato, S. Iwata

International Conference on Materials and Systems for Sustainability 2019 

Perpendicular magnetic anisotropy sputtered Fe3O4/Cr multilayer followed by annealing

D. Oshima, T. Kato, S. Iwata

2019.10.18 

Gd content dependence of spin orbit torques of SiN / GdFeCo / Ta trilayers

K. Kawakami, K. Kadowaki, T. Kato, D. Oshima, S. Iwata

2019.9.25 

Fabrication of (001)-textured MnAl film on CoGa buffer layer

D. Oshima, T. Kato, S. Iwata

2019.9.27 

Investigation of magnetization dynamics in MgO / Fe / Au system

N. Kamiya, D. Oshima, T. Kato, S. Iwata

2019.9.27 

Fabrication of (001) oriented MnGa film on Si substrate using CoGa buffer layer

Y. Miwa, D. Oshima, T. Kato, S. Iwata

2019.9.27 

Electric-field-assisted spin orbit torque switching in MgO/Co/Pt trilayers

K. Kunishima, X. Zhou, D. Oshima, T. Kato, S. Iwata

2019.9.25 

Temperature dependence of STT switching of hybrid memory layer using low Curie temperature CoPd/Pd multilayer

W. Zhao, T. Kato, D. Oshima, Y. Sonobe, S. Takahashi, S. Iwata

2019.9.25 

Magnetization dynamics of ion-irradiated L10-MnGa films

T. Kato, T. Furusawa, D. Oshima, S. Iwata

2019.8.2 

Electric-field-assisted Spin Hall Magnetization Switching in MgO/Co/Pt Trilayers International conference

K. Kunishima, X. Zhou, D. Oshima, T. Kato, S. Iwata

Magnetics and Optics Research International Symposium 2019  2019.6.25 

Spin Orbit Torques in Ferrimagnetic GdFeCo with Various Compositions International conference

K. Kawakami, D. Oshima, T. Kato, S. Iwata

Magnetics and Optics Research International Symposium 2019  2019.6.25 

Spin Transfer Torque Switching of Hybrid Memory Layers with Low Curie Temperature CoPd/Pd Multilayers International conference

W. Zhao, T. Kato, D. Oshima, Y. Sonobe, S. Takahashi, S. Iwata

Magnetics and Optics Research International Symposium 2019  2019.6.25 

Current induced magnetization switching of RE-TM and Co/Pd based multilayers (Invited) Invited International conference

T. Kato

Special Lecture Meeting at Nanyang Technological University  2019.3.20 

Magnetization direction modulation type strain sensor using giant magneto-resistance films with FeSiB free layer

K. Yasuda, Y. Hashimoto, T. Kato, D. Oshima, S. Iwata

2019.3.8 

フェリ磁性希土類遷移金属膜の電流誘起磁化反転（招待講演） Invited

加藤剛志，川上圭祐，岩田聡，大島大輝

学際・国際的高度人材育成ライフイノベーションマテリアル創製共同プロジェクト第3回公開討論会  2019.3.5 

Electric-field-assisted spin Hall magnetization switching in MgO/Co/Pt films

K. Kunishima, X. Zhou, D. Oshima, T. Kato, S. Iwata

2019.1.30 

Spin orbit torques in ferrimagnetic GdFeCo/Ta bilayers International conference

K. Kawakami, D. Oshima, T. Kato, S. Iwata

International School on Spintronics and Korea-Japan Spintronics Workshop -Topological Phenomena in Magnetism-  2019.1.21 

Perpendicular magnetic anisotropy of Fe3O4/Cr multilayers International conference

D. Oshima, T. Kato, S. Iwata

2019 Joint MMM-Intermag Conference  2019.1.15 

MnGa (001) textured film fabricated on Si substrate for application to ion beam bit patterned media International conference

T. Ishikawa, Y. Miwa, D. Oshima, T. Kato, S. Iwata

2019 Joint MMM-Intermag Conference  2019.1.16 

イオン照射による磁気ナノ構造の作製（招待講演） Invited

加藤剛志

第70回日本磁気学会スピンエレクトロニクス専門研究会 

Small angle scattering measurement using coherence of soft x-ray and its application to Gd/Fe superlattice

K. Yamamoto, Y. Yamasaki, Y. Yokoyama, Y. Hirata, K. Yamagami, K. Takubo, Y. Zhang, K. Ikeda, S. Iwata, T. Kato, T. Arima, H. Wadati

低キュリー温度CoPd/Pd多層膜を用いた複合メモリ層のスピン注入磁化反転

趙望臻，大島大輝，加藤剛志，園部義明，川戸良昭，岩田聡

平成30年度物質・デバイス領域共同研究拠点展開共同研究B研究会 

MgO/Co/Pt積層膜における電界アシストスピンホール磁化反転

國島和哉，周興，大島大輝，加藤剛志，岩田聡

平成30年度物質・デバイス領域共同研究拠点展開共同研究B研究会 

MgO/Fe/Pt積層膜におけるGilbertダンピング定数α

石井克弥，大島大輝，加藤剛志，岩田聡

第6回応用物理学会SC東海地区学術講演会 

Spin Hall magnetization switching in SiN / GdFeCo / Ta films

K. Kawakami, D. Oshima, T. Kato, S. Iwata

Current induced magnetization switching of hybrid memory layer comprised of CoPd/Pd and Co/Pd multilayers International conference

W. Zhao, T. Kimura, T. Kato, D. Oshima, Y. Sonobe, Y. Kawato, S. Iwata

40th International Symposium on Dry Process 

Fabrication of (001) oriented MnGa film on Si substrate and its patterning by ion-irradiation technique

Y. Miwa, T. Ishikawa, D. Oshima, T. Kato, S. Iwata

Damping Factors of Ferromagnetic Multilayers including Rashba Interfaces

S. Seno, S. Tomita, T. Kato, D. Oshima, S. Iwata, N. Hosoito, H. Yanagi

Observation of magnetic domains in Gd/Fe superlattices by soft x-ray coherence

H. Wadati, K. Yamamoto, Y. Yamasaki, Y. Hirata, K. Yamagami, K. Takubo, Y. Zhang, K. Ikeda, S. Iwata, T. Kato, T. Arima

Characterization of field orientation dependence of ferromagnetic resonance of Y3-xBixFe5O12 thin films

G. Lou, J. Yamakita, M. Nishikawa, T. Kato, S. Iwata, T. Ishibashi

GMR Magnetic Strain Sensor using modulation of FeSiB free-layer magnetization direction

K. Yasuda, Y. Hashimoto, T. Kato, D. Oshima, S. Iwata

Exchange coupled hybrid memory layer with low Curie temperature CoPd/Pd multilayer for high-density magnetic random-access memory cells

W. Zhao, T. Kimura, X. Dong, D. Oshima, T. Kato, Y. Sonobe, Y. Kawato, S. Iwata

Dependence of critical current of spin transfer torque magnetization switching on the layer thickness ratio of Co/Pd multilayers

W. Zhao, T. Kimura, D. Oshima, T. Kato, Y. Sonobe, Y. Kawato, S. Iwata

Electric-field-assisted spin Hall magnetization switching in perpendicularly magnetized Co ultra-thin films

K. Kunishima, X. Zhou, D. Oshima, T. Kato, S.I wata

Magnetical patterning of L10-MnGa ultrathin film grown on CoGa buffer layer

Y. Horie, Y. Miwa, D. Oshima, T. Kato, S. Iwata

Magnetization dynamics of permalloy thin films with silver/bismuth interface

S. Tomita, S. Seno, T. Kato, D. Oshima, S. Iwata, N. Hosoito, H. Yanagi

Large perpendicular magnetic anisotropy in Fe3O4/Cr multilayer films

D. Oshima, T. Kato, S. Iwata

Fabrication of (001) oriented MnGa film on Si substrate for application to bit patterned media

Y. Miwa, T. Ishikawa, D. Oshima, T. Kato, S. Iwata

Spatial Mapping of Magnetophotogalvanic Effect in Artificial Magnetic Nanostructures

T. Kobayashi, T. Kato, S. Iwata, M. Matsubara

Modification of magnetization dynamics of perpendicular magnetized Co/Ni multilayer by adsorption of magnetic nano-particles International conference

Y. Otaki, T. Kato, S. Okamoto, N. Kikuchi, D. Oshima, S. Iwata, O. Kitakami

11th International Conference of Electrical, Transport, and Optical Properties of Inhomogeneous Media 

Ion implantation for planar nano-pattering of magnetic materials (Invited) Invited International conference

T. Kato

11th International Conference of Electrical, Transport, and Optical Properties of Inhomogeneous Media 

Planar bit patterned MnGa films fabricated by ion irradiation (Invited) Invited International conference

T. Kato, D. Oshima, S. Iwata

5th International Conference of Asian Union of Magnetics Societies 

Crystal Structures and Magnetic Properties of Silica-Encapsulated CoZnFe2O4 Magnetic Nanoparticles International conference

L. O. Rusman, H. Kiswanto, A. T. Puspitasari, E. Suharyadi, T. Kato, S. Iwata

5th International Conference of Asian Union of Magnetics Societies 

Effect of Annealing Temperature on Crystal Structure and Magnetic Properties of CoZnFe2O4 Magnetic Nanoparticles International conference

H. Kiswanto, E. Suharyadi, T. Kato, S. Iwata

5th International Conference of Asian Union of Magnetics Societies 

Magnetic Anisotropy of Highly Nd3-xBixFe5-yGayO12 Studied by FMR Measurements International conference

T. Ishibashi, G. Lou, J. Yamakita, M. Nishgikawa, N. Adachi, T. Kato, S. Iwata

5th International Conference of Asian Union of Magnetics Societies 

Ion beam patterning of ultrathin L10-MnGa (001) film grown on CoGa buffer layer International conference

Y. Horie, D. Oshima, T. Kato, S. Iwata

IEEE International Magnetics Conference 2018 

Detection of magnetic nanoparticles by variation of magnetization dynamics of Co/Ni multilayer International conference

Y. Otaki, T. Kato, S. Okamoto, N. Kikuchi, D. Oshima, S. Iwata, O. Kitakami

IEEE International Magnetics Conference 2018 

Hybrid memory layer with low Curie temperature CoPd/Pd multilayer for high-density magnetic random access memory cells International conference

W. Zhao, T. Kimura, T. Kato, D. Oshima, Y. Sonobe, Y. Kawato, S. Iwata

IEEE International Magnetics Conference 2018 

Observation of magnetophotogalvanic effect in artificial magnetic nanostructures

T. Kobayashi, T. Togashi, T. Kato, S. Iwata, M. Matsubara

Time-resolved magneto-optical Kerr effects in Py/Ag/Bi trilayers

S. Seno, S. Tomita, T. Suwa, T. Kato, D. Oshima, S. Iwata, N. Hosoito, H. Yanagi

Crystal structure transformation of Fe3O4 from spinel type to rock salt type via ion irradiation

Y. Liu, Y. Hisamatsu, I. Harayama, S. Sharmin, D. Sekiba, D. Oshima, T. Kato, S. Iwata, E. Kita, H. Yanagihara

Characterization of magnetic anisotropy and high-frequency properties of Nd0.5Bi2.5Fe5-yGayO12 thin films on glass substrates

G. Lou, J. Yamakita, M. Nishikawa, Y. Matsumoto, S. Hashi, K. Ishiyama, N. Adachi, T. Kato, S. Iwata, T. Ishibashi

Magnetically patterning by irradiation onto L10-MnGa(001) ultrathin film

Y. Horie, D. Oshima, T. Kato, S. Iwata

Interlayer exchange coupling constant in Nd-Fe-B/Ni80Fe20 films by all-optical pump-probe technique

R. Mandal, D. Ogawa, Y. K. Takahashi, S. Hirosawa, K. Hono, Y. Tamazawa, T. Shima, K. Ishioka, S. Iwata, T. Kato

Ion irradiation onto MnGa film grown on CoGa buffer layer

Y. Horie, D. Oshima, T. Kato, S. Iwata

Electric-field-assisted spin Hall magnetization switching in perpendicularly magnetized Co thin films

X. Zhou, D. Oshima, T. Kato, S. Iwata

超短パルス軟X線光源を用いた非線形現象の研究

久保田雄也，山本達，平田靖透，宮内良広，田久保耕，山本真吾，大和田成起，加藤剛志，岩田聡，和達大樹，辛埴，松田巌，矢橋牧名

第31回日本放射光学会年会・放射光科学合同シンポジウム 

Compositional dependence of spin orbit torques in ferrimagnetic GdFeCo / Ta bilayers International conference

K. Kawakami, D. Oshima, T. Kato, S. Iwata

Magnetics and Optics Research International Symposium 2018 

Magnetic anisotropy in Bismuth, Gallium substituted Neodymium iron garnet thin films on GGG substrates determined by FMR measurements International conference

J. Yamakita, G. Lou, T. Kato, S. Iwata, M. Nishikawa, T. Ishibashi

Magnetics and Optics Research International Symposium 2018 

Spin transfer torque switching of Co/Pd-based multilayers with low Curie temperature International conference

T. Kimura, X. Dong, D. Oshima, T. Kato, Y. Sonobe, Y. Kawato, S. Iwata

Magnetics and Optics Research International Symposium 2018 

人工構造膜の磁化ダイナミクス計測とその制御

加藤剛志

平成29年度物質・デバイス領域共同研究拠点展開共同研究B研究会 

FeSiBフリー層を有する磁化方向変調型GMR歪みセンサ

橋本侑也，大島大輝，加藤剛志，岩田聡

平成29年度物質・デバイス領域共同研究拠点展開共同研究B研究会 

イオン照射によるMnGa膜の磁気的パターニング

大島大輝，加藤剛志，岩田聡

平成29年度物質・デバイス領域共同研究拠点展開共同研究B研究会 

Co/Ni多層膜に吸着させた磁性微粒子による磁化ダイナミクスの変化

大瀧雄介, 加藤剛志, 岩田聡, 菊池伸明, 岡本聡, 北上修

第17回東北大学多元物質科学研究所研究発表会 

Spin orbit torques in SiN / GdFeCo / Ta films

K. Kawakami, D. Oshima, T. Kato, S. Iwata

High frequency characteristics of highly bismuth-substituted neodymium iron garnet thin films on glass substrates prepared by metal-organic decomposition method

G. Lou, J. Yamakita, M. Nishikawa, Y. Matsumoto, S. Hashi, K. Ishiyama, N. Adachi, T. Kato, S. Iwata, T. Ishibashi

Current induced magnetization switching of Co/Pd-based multilayers with low Curie temperature International conference

T. Kimura, X. Dong, D. Oshima, T. Kato, Y. Sonobe, Y. Kawato, S. Iwata

62nd Annual Conference on Magnetism and Magnetic Materials 

Compositional Dependence of spin orbit torques in amorphous GdFeCo films International conference

K. Kawakami, D. Oshima, T. Kato, S. Iwata

62nd Annual Conference on Magnetism and Magnetic Materials 

Time Domain Study of Magnetization Dynamics to Evaluate Interlayer Exchange Coupling Constant in Nd2Fe14B/Ni80Fe20 Films (Invited) Invited International conference

R. Mandal, YK. Takahashi, K. Ishioka, T. Shima, D. Ogawa, T. Kato, S. Iwata, S. Hirosawa, K. Hono

62nd Annual Conference on Magnetism and Magnetic Materials 

Electric-field-assisted spin Hall magnetization switching in perpendicularly magnetized Co ultra-thin films

X. Zhou, D. Oshima, T. Kato, S. Iwata

Fabrication of spin valve magneto-resistance films having exchange coupled free layer for the application to high sensitivity magnetic field sensor

A. Uno, T. Takahashi, D. Oshima, T. Kato, S. Iwata

Modification of magnetic properties of Co ultra-thin films by the application of electric field

H. Maeda, R. Tanaka, D. Oshima, T. Kato, S. Iwata

Effect of Zn concentration on Crystal Structure and Magnetic Properties of ZnxNi1-xFe2O4 Nanoparticles Fabricated by Co-precipitation Method International conference

N. Istikhomah, J. Widakdo, A. Rifianto, E. Suharyadi, T. Kato, S. Iwata

IEEE Nanotechnology Materials and Devices Conference 2017 

Crystal Structures and Magnetic Properties of Silica and Polyethylene Glycol (PEG-4000) - Encapsulated Zn0.5Ni0.5Fe2O4 Magnetic Nanoparticles International conference

J. Widakdo, N. Istikhomah, A. Rifianto, E. Suharyadi, T. Kato, S. Iwata

IEEE Nanotechnology Materials and Devices Conference 2017 

Magnetic strain sensor using spin valve GMR films with FeSiB free layer International conference

Y. Hashimoto, N. Yamamoto, T. Kato, D. Oshima, S. Iwata

International Conference on Materials and Systems for Sustainability 

Scanning X-ray magnetic circular dichroism observation of magnetic state of ion-irradiation bit patterned L10-MnGa films International conference

T. Ishikawa, K. Fukuta, D. Oshima, T. Kato, T. Nakamura, Y. Kotani, K. Toyoki, S. Iwata

International Conference on Materials and Systems for Sustainability 

Spin-Valve GMR Magnetic Strain Sensor with FeSiB Free Layer

Y. Hashimoto, N. Yamamoto, T. Kato, D. Oshima, S. Iwata

Estimation of Interlayer Exchange Coupling Constant in Nd2Fe14B / Ni80Fe20 Thin Film: A TRMOKE Study

R. Mandal, Y. Takahashi, K. Ishioka, T. Shima, D. Ogawa, T. Kato, S. Hirosawa, K. Hono

Spin transfer torque magnetization switching of Co/Pd based multilayers with low Curie temperature

T. Kimura, X. Dong, D. Oshima, T. Kato, Y. Sonobe, Y. Kawato, S. Iwata

FORC analysis of MnGa bit patterned film fabricated by ion irradiation

D. Oshima, T. Kato, S. Iwata

Spin orbit torques in amorphous GdFeCo films

K. Kawakami, D. Oshima, T. Kato, S. Iwata

Local magnetic state of ion-irradiation L10-MnGa bit patterned films probed by scanning X-ray magnetic circular dichroism microscope

T. Ishikawa, K. Fukuta, D. Oshima, T. Kato, T. Nakamura, Y. Kotani, K. Toyoki, S. Iwata

スピントロニクスデバイスを基盤としたナノ計測技術の開発と物質・材料研究への展開

白土優，加藤剛志，鈴木義茂，三輪真嗣，野崎隆行，荒河一渡，小谷佳範，中村哲也

SPring-8シンポジウム2017 

Ion Beam Bit Patterned Media Using MnGa Alloy Films (Invited) Invited International conference

D. Oshima, T. Kato, S. Iwata

The 28th Magnetic Recording Conference 

熱を利用した高機能スピンデバイス開発に向けて（招待講演） Invited

加藤剛志

電気学会　第1回光・熱・磁気の相互作用を利用した新規スピンデバイス・ストレージ技術調査専門委員会 

Magnetic strain sensor using GMR films with magnetostrictive FeSiB free layer International conference

Y. Hashimoto, N. Yamamoto, T. Kato, D. Oshima, S. Iwata

IEEE International Magnetics Conference 2017 

FMR measurements of highly bismuth-substituted neodymium iron garnet thin films International conference

G. Lou, T. Kato, S. Iwata, T. Ishibashi

IEEE International Magnetics Conference 2017 

First order reversal curve diagram analysis of ion irradiated bit patterned MnGa film International conference

D. Oshima, T. Kato, S. Iwata

IEEE International Magnetics Conference 2017 

Local switching field and magnetic state of ion-irradiation bit patterned L10-MnGa film probed by scanning X-ray magnetic circular dichroism International conference

T. Ishikawa, K. Fukuta, D. Oshima, T. Kato, T. Nakamura, Y. Kotani, K. Toyoki, S. Iwata

IEEE International Magnetics Conference 2017 

Characterization of high frequency characteristics of Nd0.5Bi2.5Fe5O12 thin films for magneto-optical imaging

G. Lou, Y. Matsumoto, S. Hashi, K. Ishiyama, T. Kato, S. Iwata, N. Adachi, T. Taniyama, T. Ishibashi

Strain sensor using giant magneto-resistance films with amorphous FeSiB free layer

Y. Hashimoto, N. Yamamoto, T. Kato, D. Oshima, S. Iwata

Characterization of high frequency characteristics of highly bismuth-substituted garnet thin films for magneto-optical imaging

G. Lou, Y. Matsumoto, S. Hashi, K. Ishiyama, T. Kato, S. Iwata, N. Adachi, T. Taniyama, T. Ishibashi

SQUIDセンサを代替できる室温動作ピコテスラ磁気センサを目指して（招待講演） Invited

加藤剛志，岩田聡，大島大輝，本蔵義信

平成28年度名古屋大学脳とこころの研究センターシンポジウム 

Study of high density MnGa bit patterned film by low energy ion irradiation

K. Fukuta, T. Matsunaga, D. Oshima, T. Kato, S. Iwata

Magnetization switching of perpendicularly magnetized GdFeCo amorphous film by spin orbit torques

T. Matsumura, D. Oshima, T. Kato, S. Iwata

時間分解共鳴磁気光学効果／磁気円二色性測定によるAu/Fe/Au系の超高速消磁・緩和過程の追跡

山本真吾，山本航平，高橋良暢，丸山航平，鈴木雄太，久保田雄也，伊藤俊，福田憲吾，大島大輝，大和田成起，加藤剛志，藤澤正美，保原麗，C. Schussler-Langeheine，平田靖透，山本達，小嗣真人，岩田聡，和達大樹，矢橋牧名，辛埴，松田巌

第30回日本放射光学会年会・放射光科学合同シンポジウム 

Time resolved magneto-optical Kerr effect of magnetic materials with high perpendicular magnetic anisotropy Invited

T. Kato

International Workshop on Novel Photo Induced Phenomena and Applications 

Fabrication of High Sensitive Magnetic Field Sensor with Amorphous Wire and Fine Pitch Coils International conference

T. Kato, S. Iwata, Y. Honkura

29th International Microprocesses and Nanotechnology Conference 

Magnetization dynamics and magnetic anisotropy of ion irradiated L10-MnGa films International conference

H. Kano, T. Kato, D. Oshima, S. Takahashi, Y. Sonobe, S. Iwata

61st Annual Conference on Magnetism and Magnetic Materials 

Sign of Spin-Orbit Torques in ferrimagnetic GdFeCo International conference

N. Roschewsky, T. Matsumura, S. Cheema, T. Kato, S. Iwata, S. Salahuddin

61st Annual Conference on Magnetism and Magnetic Materials 

Magnetization switching induced by spin-orbit torques in perpendicularly magnetized Ta / GdFeCo bilayers International conference

T. Matsumura, D. Oshima, T. Kato, N. Roschewsky, S. Salahuddin, S. Iwata

61st Annual Conference on Magnetism and Magnetic Materials 

[CoPd/Pd] and [Co/Pd] hybrid stacks for the memory layer of high density magnetic random access memory cells International conference

X. Dong, D. Oshima, T. Kato, Y. Sonobe, S. Iwata

61st Annual Conference on Magnetism and Magnetic Materials 

First order reversal curve diagrams of bit patterned MnGa fabricated by local ion irradiation International conference

D. Oshima, T. Kato, S. Iwata

61st Annual Conference on Magnetism and Magnetic Materials 

Fabrication of (001) oriented MnGa film grown on Si substrate and ion-irradiation patterning

T. Ishikawa, T. Negoro, K. Fukuta, D. Oshima, T. Kato, S. Iwata

FMR measurements of highly bismuth-substituted neodymium iron garnet thin films

G. Lou, N. Adachi, T. Kato, S. Iwata, Y. Matsumoto, S. Hashi, K. Ishiyama, T. Ishibashi

Dependence of Gilbert damping constant of Co/Ni multilayers on underlayer materials

K. Kato, D. Oshima, T. Kato, S. Iwata

Study on energy harvesting devices using FeSiB amorphous thin film

Y. Otaki, D. Oshima, T. Kato, S. Iwata

Study on energy harvesting devices using FeSiB amorphous thin film

T. Nishida, D. Oshima, T. Kato, S. Iwata

Time resolved magneto-optical Kerr effect and spin transfer torque switching of GdFeCo / TbFe exchange coupled bilayers (Invited) Invited

T. Kato, T. Higashide, B. Dai, D. Oshima, S. Iwata

Fabrication of MnGa bit patterned structure by low energy Kr+ ion irradiation

K. Fukuta, T. Matsunaga, D. Oshima, T. Kato, S. Iwata

Magnetization switching of exchange coupled bilayers with low Curie temperature CoPd/Pd multilayers

X. Dong, D. Oshima, T. Kato, Y. Sonobe, S. Iwata

Temperature dependence of magnetic properties of ion-irradiated MnGa films

D. Oshima, T. Kato, S. Iwata

Ion-irradiation patterning of (001) oriented MnGa film grown on Si substrate

T. Ishikawa, T. Negoro, D. Oshima, T. Kato, S. Iwata

Spin Hall switching of perpendicular magnetized GdFeCo films

T. Matsumura, D. Oshima, T. Kato, S. Iwata

Time-resolved magneto-optical Kerr effect of L10-MnGa films irradiated with 30 keV Kr+ ions

H. Kano, T. Kato, D. Oshima, S. Takahashi, Y. Sonobe, S. Iwata

Magnetotransport Properties of FePt Alloy-NDs Stacked Structures

T. Kawase, K. Makihara, T. Kato, A. Ohta, M. Ikeda, S. Iwata, S. Miyazaki

Study of perpendicular magnetic anisotropy change of Fe ultrathin film induced by interfacial spin-orbit interaction

Sh. Yamamoto, K. Yamamoto, K. Takubo, K. Fukuta, D. Oshima, T. Kato, S. Iwata, H. Wadati, I. Matsuda

Topotactic phase transformation of spinel Fe3O4 to FeO with rock salt structure via ion irradiation

Y. Liu, Y. Hisamatsu, S. Sharmin, D. Oshima, T. Kato, S. Iwata, E. Kita, H. Yanagihara

Development of nano-measurement technology of the materials for spintronics devices

The calcination temperature dependence of microstructural, vibrational spectra and magnetic properties of nanocrystalline Mn0.5Zn0.5Fe2O4 International conference

I. P. T. Indrayana, N. Siregar, E. Suharyadi, T. Kato, S. Iwata

8th International Conference on Physics and its Applications 

Study of high-density ion-irradiated bit patterned media using MnGa alloy films

D. Oshima, K. Fukuta, T. Kato, S. Iwata

Characterization of stress-induced magnetic anisotropy in Nd0.5Bi2.5Fe4GaO12 thin films

T. Hashinaka, M. Sasaki, T. Ishibashi, T. Kato, S. Iwata, T. Taniyama

Study of perpendicular magnetic anisotropy change of Fe ultrathin film induced by Rashba spin-orbit interaction

Sh. Yamamoto, K. Yamamoto, K. Takubo, K. Fukuta, D. Oshima,T. Kato, S. Iwata, H. Wadati, I. Matsuda

FMR measurements of Nd0.5Bi2.5Fe5-yGayO12 (y = 0-1) thin films on glass substrates prepared by MOD method

G. Lou, M. Sasaki, N. Adachi, T. Kato, S. Iwata, T. Ishibashi

Study of perpendicular magnetic anisotropy change of Fe ultrathin film induced by Rashba spin-orbit interaction

S. Yamamoto, K. Yamamoto, K. Takubo, K. Fukuta, D. Oshima, T. Kato, S. Iwata, H. Wadati, I. Matsuda

Spin Hall switching of perpendicular magnetized GdFeCo amorphous films

T. Matsumura, D. Oshima, T. Kato, S. Iwata

Preparation and magnetic anisotropy of Bi, Ga-substituted Nd iron garnet films on glass substrates

Q. Liu, G. Lou, T. Hashinaka, M. Sasaki, T. Ishibashi, T. Kato, S. Iwata

Control of structure and magnetic properties of CrPt3 films by heat treatment or ion irradiation

K. Fukuta, D. Oshima, T. Kato, S. Iwata

Magnetization control of CoFe2O4 thin films by Kr ion implantation International conference

Y. Liu, E. Kita, H. Yanagihara, D. Oshima, T. Kato, S. Iwata, K. Mibu

2016 Joint MMM-Intermag Conference 

Ion irradiation induced magnetic transition of MnGa alloy films studied by X-ray magnetic circular dichroism and low-temperature hysteresis loops International conference

D. Oshima, M. Tanimoto, T. Kato, Y. Fujiwara, T. Nakamura, Y. Kotani, S. Tsunashima, S. Iwata

2016 Joint MMM-Intermag Conference 

Structural and magnetic transitions of CrPt3 films by heat treatment and ion irradiation International conference

K. Fukuta, D. Oshima, T. Kato, S. Iwata

Magnetics and Optics Research International Symposium 2015 

Gilbert damping constant of TbFe / GdFeCo bilayers with various layer stacks International conference

T. Higashide, B. Dai, D. Oshima, T. Kato, S. Iwata

Magnetics and Optics Research International Symposium 2015 

Magnetic Anisotropy of Highly Bi-substituted Neodymium Iron Gallium Garnets

M. Sasaki, G. Lou, Q. Liu, T. Hashinaka, T. Kato, S. Iwata, T. Taniyama, T. Ishibashi

The effect of strain induced by substrates on magnetic anisotropy in Nd0.5Bi2.5Fe4GaO12 thin films

T. Hashinaka, M. Sasaki, T. Ishibashi, T. Kato, S. Iwata, T. Taniyama

Thin film MnGa fabrication for ultra high density ion irradiation bit patterned media

T. Matsunaga, K. Fukuta, D. Oshima, T. Kato, S. Iwata, S. Tsunashima

Bi置換Nd系磁性ガーネットを用いた磁気光学イメージングプレートの開発

石橋隆幸，婁庚健，劉 ，佐々木教真，加藤剛志，岩田聡

電気学会平成27年度基礎・材料・共通部門大会 

Evaluation of damping constants for Co/Pt multilayer and CoPt alloy films

Y. Kusanagi, S. Okamoto, N. Kikuchi, O. Kitakami, T. Kato, S. Iwata

Anomalous local structure of FeRh thin film showing metamagnetic transition revealed by XAFS

Y. Wakisaka, Y. Uemura, T. Yokoyama, D. Oshima, T. Kato, S. Iwata