研究者詳細 - 生田　博志

論文 - 生田　博志

分割表示 >> ／全件表示 277 件中 1 - 277 件目

Structural analysis and transport properties of [010]-tilt grain boundaries in Fe(Se,Te) 査読有り国際共著

Iida, K; Yamauchi, Y; Hatano, T; Walter, K; Holzapfel, B; Hänisch, J; Guo, ZM; Gao, HY; Shi, HS; Tokuta, S; Hata, S; Yamamoto, A; Ikuta, H

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 25 巻 ( 1 ) 頁： 2384829 2024年12月

High mobility charge transport in a multicarrier altermagnet CrSb 査読有り

Urata, T; Hattori, W; Ikuta, H

PHYSICAL REVIEW MATERIALS 8 巻 ( 8 ) 頁： 084412 2024年8月

Fabrication of microstrips of iron-based superconductor NdFeAs(O,H) 査読有り

Yoshikawa, A; Hatano, T; Hibino, H; Imanaka, H; Ikuta, H

SUPERCONDUCTOR SCIENCE & TECHNOLOGY 37 巻 ( 8 ) 頁： 085008 2024年8月

Single Crystal Growth and Transport Properties of van der Waals Materials ABTe4 (A=B = Ti, Zr, Hf) 査読有り

Hasuo, Y; Urata, T; Araidai, M; Tsuchiya, Y; Awaji, S; Ikuta, H

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 93 巻 ( 1 ) 頁： 014705 2024年1月

Critical behavior of the specific heat in Ti-Si amorphous alloys at the metal-insulator transition 査読有り国際共著国際誌

Rogachev, A; Ikuta, H; Mizutani, U

PHYSICAL REVIEW B 106 巻 ( 18 ) 頁： 184204 2022年11月

Multicritical phase diagram of PrMn_1-xSb₂ with two interacting magnetic elements 査読有り

Urata Takahiro, Takahashi Yusuke, Kuga Kentaro, Takeuchi Tsunehiro, Ikuta Hiroshi

PHYSICAL REVIEW B 106 巻 ( 18 ) 頁： 184401 2022年11月

Thin film growth of Ba(Zn,Fe)2As2 by molecular beam epitaxy 査読有り国際誌

Ikegami R., Hatano T., Kiyozawa T., Ishida T., Tomizawa Y., Iida K., Ikuta H.

THIN SOLID FILMS 758 巻頁： 139420 2022年9月

Inter- to intra-layer resistivity anisotropy of NdFeAs(O,H) with various hydrogen concentrations 査読有り国際共著

Chen M. Y., Iida K., Kondo K., Haenisch J., Hatano T., Ikuta H.

PHYSICAL REVIEW MATERIALS 6 巻 ( 5 ) 頁： 054802 2022年5月

Metamagnetic transitions associated with two antiferromagnetic phases of PrMn1-xSb2 and its magnetic phase diagram 査読有り国際誌

Takahashi Yusuke, Urata Takahiro, Ikuta Hiroshi

PHYSICAL REVIEW B 104 巻 ( 5 ) 2021年8月

Nanoscale Texture and Microstructure in a NdFeAs(O,F)/IBAD-MgO Superconducting Thin Film with Superior Critical Current Properties 査読有り国際共著

Guo Zimeng, Gao Hongye, Kondo Keisuke, Hatano Takafumi, Iida Kazumasa, Haenisch Jens, Ikuta Hiroshi, Hata Satoshi

ACS APPLIED ELECTRONIC MATERIALS 3 巻 ( 7 ) 頁： 3158 - 3166 2021年7月

High Jc and low anisotropy of hydrogen doped NdFeAsO superconducting thin film 査読有り国際誌

Iida Kazumasa, Haenisch Jens, Kondo Keisuke, Chen Mingyu, Hatano Takafumi, Wang Chao, Saito Hikaru, Hata Satoshi, Ikuta Hiroshi

SCIENTIFIC REPORTS 11 巻 ( 1 ) 頁： 5636 2021年3月

Metallic transport properties and electrostatic resistance modulations in LaNiO3 ultrathin channels electrochemically etched in electric-double-layer transistors 査読有り国際誌

Kan Daisuke, Hatano Takafumi, Abe Akihiro, Ikuta Hiroshi, Shimakawa Yuichi

APPLIED PHYSICS LETTERS 117 巻 ( 23 ) 2020年12月

Thin film growth of CaAgAs by molecular beam epitaxy 査読有り

Hatano T., Nakamura I, Ohta S., Tomizawa Y., Urata T., Iida K., Ikuta H.

JOURNAL OF PHYSICS-CONDENSED MATTER 32 巻 ( 43 ) 2020年10月

NdFeAs(O,H) epitaxial thin films with high critical current density 査読有り

Kondo Keisuke, Motoki Seiya, Hatano Takafumi, Urata Takahiro, Iida Kazumasa, Ikuta Hiroshi

SUPERCONDUCTOR SCIENCE & TECHNOLOGY 33 巻 ( 9 ) 2020年9月

Microfabrication of NdFeAs(O,F) thin films and evaluation of the transport properties 査読有り

Tsuji Yasunari, Hatano Takafumi, Kondo Keisuke, Iida Kazumasa, Mawatari Yasunori, Ikuta Hiroshi

SUPERCONDUCTOR SCIENCE & TECHNOLOGY 33 巻 ( 7 ) 2020年7月

Anisotropy of the transport properties of NdFeAs(O,F) thin films grown on vicinal substrates 査読有り国際誌

Iida, K; Matsumoto, T; Kondo, K; Hatano, T; Ikuta, H

SUPERCONDUCTOR SCIENCE & TECHNOLOGY 33 巻 ( 4 ) 2020年4月

p-wave superconductivity in iron-based superconductors 査読有り国際共著国際誌

Talantsev, EF; Iida, K; Ohmura, T; Matsumoto, T; Crump, WP; Strickland, NM; Wimbush, SC; Ikuta, H

SCIENTIFIC REPORTS 9 巻 2019年10月

Improved Thermoelectric Properties of Re-Substituted Higher Manganese Silicides by Inducing Phonon Scattering and an Energy-Filtering Effect at Grain Boundary Interfaces 査読有り

Ghodke Swapnil, Yamamoto Akio, Hu Hsuan-Chun, Nishino Shunsuke, Matsunaga Takuya, Byeon Dogyun, Ikuta Hiroshi, Takeuchi Tsunehiro

ACS APPLIED MATERIALS & INTERFACES 11 巻 ( 34 ) 頁： 31169 - 31175 2019年8月

Microscopic origin of highly enhanced current carrying capabilities of thin NdFeAs(O,F) films 査読有り国際共著

Kauffmann-Weiss Sandra, Iida Kazumasa, Tarantini Chiara, Boll Torben, Schneider Reinhard, Ohmura Taito, Matsumoto Takuya, Hatano Takafumi, Langer Marco, Meyer Sven, Jaroszynski Jan, Gerthsen Dagmar, Ikuta Hiroshi, Holzapfel Bernhard, Haenisch Jens

NANOSCALE ADVANCES 1 巻 ( 8 ) 頁： 3036-3048 2019年8月

Grain boundary characteristics of oxypnictide NdFeAs(O,F) superconductors 査読有り

Iida Kazumasa, Omura Taito, Matsumoto Takuya, Hatano Takafumi, Ikuta Hiroshi

SUPERCONDUCTOR SCIENCE & TECHNOLOGY 32 巻 ( 7 ) 頁： 074003 (7 pages) 2019年7月

Density Wave Probes Cuprate Quantum Phase Transition 査読有り国際共著

Webb Tatiana A., Boyer Michael C., Yin Yi, Chowdhury Debanjan, He Yang, Kondo Takeshi, Takeuchi T., Ikuta H., Hudson Eric W., Hoffman Jennifer E., Hamidian Mohammad H.

PHYSICAL REVIEW X 9 巻 ( 2 ) 頁： 021021 (10 pages) 2019年5月

Ambipolar suppression of superconductivity by ionic gating in optimally doped BaFe2(As, P)2 ultrathin films 査読有り国際共著国際誌

Piatti, E; Hatano, T; Daghero, D; Galanti, F; Gerbaldi, C; Guastella, S; Portesi, C; Nakamura, I; Fujimoto, R; Iida, K; Ikuta, H; Gonnelli, RS

PHYSICAL REVIEW MATERIALS 3 巻 ( 4 ) 頁： 044801 (10 pages) 2019年4月

Novel method to study strain effect of thin films using a piezoelectric-based device and a flexible metallic substrate 査読有り国際共著

Iida Kazumasa, Sugimoto Yuwa, Hatano Takafumi, Urata Takahiro, Langer Marco, Holzapfel Bernhard, Haenisch Jens, Ikuta Hiroshi

APPLIED PHYSICS EXPRESS 12 巻 ( 1 ) 頁： 016503 (4 pages) 2019年1月

Vortex glass-liquid transition and activated flux motion in an epitaxial, superconducting NdFeAs(O,F) thin film 査読有り国際共著

Haenisch J., Iida K., Ohmura T., Matsumoto T., Hatano T., Langer M., Kauffmann-Weiss S., Ikuta H., Holzapfel B.

MRS COMMUNICATIONS 8 巻 ( 4 ) 頁： 1433-1438 2018年12月

Nonmonotonic and anisotropic magnetoresistance effect in antiferromagnet CaMn2Bi2 査読有り国際誌

Kawaguchi N., Urata T., Hatano T., Iida K., Ikuta H.

PHYSICAL REVIEW B 97 巻 ( 14 ) 頁： 140403 (5 pages) 2018年4月

Decoupling of critical temperature and superconducting gaps in irradiated films of a Fe-based superconductor 査読有り国際共著国際誌

Daghero, D; Tortello, M; Ummarino, GA; Piatti, E; Ghigo, G; Hatano, T; Kawaguchi, T; Ikuta, H; Gonnelli, RS

SUPERCONDUCTOR SCIENCE & TECHNOLOGY 31 巻 ( 3 ) 2018年3月

Effect of α-particle irradiation on a NdFeAs (O,F) thin film 査読有り国際共著国際誌

Tarantini C., Iida K., Sumiya N., Chihara M., Hatano T., Ikuta H., Singh R. K., Newman N., Larbalestier D. C.

SUPERCONDUCTOR SCIENCE & TECHNOLOGY 31 巻 ( 3 ) 頁： 034002 (10 pages) 2018年3月

Fabrication of grain boundary junctions using NdFeAs(O,F) superconducting thin films 査読有り

T. Omura, T. Matsumoto, T. Hatano, K. Iida, and H. Ikuta

Journal of Physics: Conference Series 1054 巻頁： 012024 (6 pages) 2018年

Hall effect measurements of high-quality Mn3CuN thin films and the electronic structure 査読有り国際誌

Matsumoto Toshiki, Hatano Takafumi, Urata Takahiro, Iida Kazumasa, Takenaka Koshi, Ikuta Hiroshi

PHYSICAL REVIEW B 96 巻 ( 20 ) 頁： 205153 (6 pages) 2017年11月

Superconducting gap of heavily underdoped copper oxide superconductor (Bi,Pb)2Sr2(Ca,Y)Cu2O8+δ 査読有り国際誌

Sakamoto Hideki, Kondo Takeshi, Shin Shik, Matsunami Masaharu, Ikuta Hiroshi, Takeuchi Tsunehiro

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 220 巻頁： 54 - 57 2017年10月

Selective mass enhancement close to the quantum critical point in BaFe2(As1-xPx)2 査読有り国際共著国際誌

Grinenko V., Iida K., Kurth F., Efremov D. V., Drechsler S. -L., Cherniavskii I., Morozov I., Haenisch J., Foerster T., Tarantini C., Jaroszynski J., Maiorov B., Jaime M., Yamamoto A., Nakamura I., Fujimoto R., Hatano T., Ikuta H., Huehne R.

SCIENTIFIC REPORTS 7 巻 2017年7月

Effect of ion irradiation on surface morphology and superconductivity of BaFe2(As1-xPx)2 films 査読有り国際共著国際誌

Daghero D., Tortello M., Gozzelino L., Gonnelli R. S., Hatano T., Kawaguchi T., Ikuta H.

APPLIED SURFACE SCIENCE 395 巻頁： 9 - 15 2017年2月

Josephson effects at iron pnictide superconductors: Approaching phase-sensitive experiments 査読有り

Schmidt Stefan, Doering Sebastian, Hasan Noor, Schmidl Frank, Tympel Volker, Kurth Fritz, Iida Kazumasa, Ikuta Hiroshi, Wolf Thomas, Seidel Paul

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS 254 巻 ( 1 ) 頁： 1600165 (15 pages) 2017年1月

Thermoelectric Properties of p-Type Cr Doped MnSiγ Prepared by Liquid Quenching Technique 査読有り国際誌

Ghodke Swapnil, Yamamoto A., Omprakash M., Ikuta H., Takeuchi T.

MATERIALS TRANSACTIONS 58 巻 ( 2 ) 頁： 160 - 163 2017年

Intrinsic and extrinsic pinning in NdFeAs(O,F): vortex trapping and lock-in by the layered structure 査読有り国際共著

C. Tarantini, K. Iida, J. Haenisch, F. Kurth, J. Jaroszynski, N. Sumiya, M. Chihara, T. Hatano, H. Ikuta, S. Schmidt, P. Seidel, B. Holzapfel, D. C. Larbalestier

SCIENTIFIC REPORTS 6 巻頁： 36047 (9 pages) 2016年10月

Carrier Concentration Dependence of Superconducting Gap of Bi₂(Sr,La)₂CuO_6+δ 査読有り

H. Sakamoto, K. Ogawa, T. Kondo, S. Shin, M. Matsunami, H. Ikuta, and T. Takeuchi

Journal of the Physical Society of Japan 85 巻頁： 104710 (7 pages) 2016年9月

Thermoelectric Properties Higher Manganese Silicide Containing Small Amount of MnSi/Si Nano-Particles 査読有り

S. Ghodke, A. Yamamoto, H. Ikuta, and T. Takeuchi

Ceramic Transactions 255 巻頁： 113 - 122 2016年7月

Enhanced Thermoelectric Properties of W- and Fe-Substituted MnSi_γ 査読有り

S. Ghodke, N. Hiroishi, A. Yamamoto, H. Ikuta, M. Matsunami, and T. Takeuchi

Journal of Electronic Materials 45 巻頁： 5279 - 5284 2016年6月

Cation-stoichiometry of functional oxides modified by oxygen vacancy through growth kinetics control 査読有り国際共著

X. Cui, W. Wang, Y. Zhuang, L. Guo, H. Xiang, X. Yao, B. Pan, H. Ikuta, and Z. Zou

J. Alloys Compd. 663 巻頁： 10 - 15 2015年12月

Thin film growth of CaFe₂As₂ by molecular beam epitaxy 査読有り

T. Hatano, T. Kawaguchi, R. Fujimoto, I. Nakamura, Y. Mori, S. Harada, T. Ujihara, and H. Ikuta

Supercond. Sci. Technol. 29 巻頁： 015013 (7 pages) 2015年12月

Direct growth of superconducting NdFeAs(O,F) thin films by MBE 査読有り

M. Chihara, N. Sumiya, K. Arai, A. Ichinose, I. Tsukada, T. Hatano, K. Iida, and H. Ikuta

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 518 巻頁： 69 - 72 2015年4月

Seed-Size Effect on the Growth and Superconducting Performance of YBCO Single-Grain Bulks 査読有り国際共著

H. Li, W. Fan, B. Peng, W. Wang, Y. Zhuang, L. Guo, X. Yao and H. Ikuta

Crystal Growth & Design 15 巻 ( 4 ) 頁： 1740 - 1744 2015年2月

Unusually high critical current of clean P-doped BaFe₂As₂ single crystalline thin film 査読有り国際共著

F. Kurth, C. Tarantini, V. Grinenko, J. Hänisch, J. Jaroszynski, E. Reich, Y. Mori, A. Sakagami, T. Kawaguchi, J. Engelmann, L. Schultz, B. Holzapfel, H. Ikuta, R. Hühne, and K. Iida

Applied Physics Letters 106 巻 ( 7 ) 頁： 072602 (5 pages) 2015年2月

Highly textured oxypnictide superconducting thin films on metal substrates 査読有り国際共著

K. Iida, F. Kurth, M. Chihara, N. Sumiya, V. Grinenko, A. Ichinose, I. Tsukada, J. Hänisch, V. Matias, T. Hatano, B. Holzapfel, and H. Ikuta

Applied Physics Letters 105 巻 ( 17 ) 頁： 172602 (4 pages) 2014年10月

Effects on air-processed NdBCO superconductor bulks when adding a Ba-rich Nd₂Ba₄Cu₂O₉ phase 査読有り国際共著

Y. M. Lei, L. Cheng, B. N. Peng, W. Wang, Y. F. Zhuang, H. C. Li, X. Yao, and H. Ikuta

Supercond. Sci. Technol. 27 巻 ( 8 ) 頁： 085016 (6 pages) 2014年7月

Bicrystalline Grain Boundary Junctions of Co-doped and P-doped Ba-122 Thin Films 査読有り国際共著

S. Schmidt, S. Doring, F. Schmidl, F. Kurth, K. Iida, B. Holzapfel, T. Kawaguchi, Y. Mori, H. Ikuta, and P. Seidel

J. Phys.: Conf. Ser. 507 巻頁： 012046 (4 pages) 2014年5月

Growth of a smooth CaF₂ layer on NdFeAsO thin film 査読有り

N. Sumiya, T. Kawaguchi, M. Chihara, M. Tabuchi, T. Ujihara, A. Ichinose, I. Tsukada, and H. Ikuta

J. Phys.: Conf. Ser. 507 巻頁： 012047 (4 pages) 2014年5月

Fermi Surface and Pseudogap Evolution in a Cuprate Superconductor 査読有り国際共著

Yang He, Yi Yin, M. Zech, Anjan Soumyanarayanan, Michael M. Yee, Tess Williams, M. C. Boyer, Kamalesh Chatterjee, W. D. Wise, I. Zeljkovic, Takeshi Kondo, T. Takeuchi, H. Ikuta, Peter Mistark, Robert S. Markiewicz, Arun Bansil, Subir Sachdev, E. W. Hudson, and J. E. Hoffman

Science 344 巻頁： 608 - 611 2014年5月

The strain effect on the superconducting properties of BaFe₂(As,P)₂ thin films grown by molecular beam epitaxy 査読有り

T. Kawaguchi, A. Sakagami, Y. Mori, M. Tabuchi, T. Ujihara, Y. Takeda, and H. Ikuta

Supercond. Sci. Technol. 27 巻頁： 065005 (6 pages) 2014年4月

Sputter deposition and characterization of Mn₃CuN thin films 査読有り

M. Aoyama, K. Takenaka, and H. Ikuta

Journal of Alloys and Compounds 577 巻 ( Supplement 1 ) 頁： S314 - S317 2013年11月

Two-layer batch-process of YBa₂Cu₃O_x bulk superconductors induced by NdBa₂Cu₃O_x film-seeds 査読有り国際共著

D. J. Yu, L. Cheng, B. N. Peng, Y. Y. Chen, H. H. Xu, H. Li, X. Yao, and H. Ikuta

Journal of Applied Physics 113 巻 ( 20 ) 頁： 203914 (5 pages) 2013年5月

Topological Dangling Bonds with Large Spin Splitting and Enhanced Spin Polarization on the Surfaces of Bi₂Se₃ 査読有り国際共著

H. Lin, T. Das, Y. Okada, M. C. Boyer, W. D. Wise, M. Tomasik, B. Zhen, E. W. Hudson, W. Zhou, V. Madhavan, C.-Y. Ren, H. Ikuta, and A. Bansil

Nano Letters 13 巻 ( 5 ) 頁： 1915 - 1919 2013年5月

Critical current density and grain boundary property of BaFe₂(As,P)₂ thin films 査読有り

A. Sakagami, T. Kawaguchi, M. Tabuchi, T. Ujihara, Y. Takeda, and H. Ikuta

Physica C 494 巻頁： 181 2013年4月

Selective Raman Scattering Detection of the Dirac Node and the Anti-node of the Spin Density Wave Gap and Magnetic Excitations in BaFe₂As₂ 査読有り

S. Sugai, Y. Mizuno, R. Watanabe, T. Kawaguchi, K. Takenaka, H. Ikuta, K. Kiho, M. Nakajima, C. Lee, A. Iyo, H. Eisaki, and S. Uchida

Journal of Superconductivity and Novel Magnetism 26 巻 ( 4 ) 頁： 1179 - 1183 2013年1月

強磁場スパッタ法を用いたマンガン窒化物薄膜Mn₃CuN の作製と評価査読有り

松本健介，青山真大，竹中康司，生田博志

日本金属学会誌 77 巻 ( 3 ) 頁： 80 - 84 2013年

Growth of Ca-Doped Large Grain Gd-Ba-Cu-O Superconductors 査読有り国際共著

L. Cheng, W. Li, B. Q. Kou, X. Yao, and H. Ikuta

Journal of the American Ceramic Society 95 巻 ( 10 ) 頁： 3090 - 3094 2012年7月

Spin State Transitions in RECoO₃ Investigated by μ⁺SR 査読有り国際共著

J. Sugiyama, Y. Ikedo, H. Nozaki, K. Mukai, E. J. Ansaldo, J. H. Brewer, K. H. Chow, T. Takami, and H. Ikuta

Physics Procedia 30 巻頁： 182 - 185 2012年6月

Scanning tunnelling microscopy imaging of symmetry-breaking structural distortion in the bismuth-based cuprate superconductors 査読有り国際共著

I. Zeljkovic, E. J. Main, T. L. Williams, M. C. Boyer, K. Chatterjee, W. D. Wise, Y. Yin, M. Zech, A. Pivonka, T. Kondo, T. Takeuchi, H. Ikuta, J. Wen, Z. Xu, G. D. Gu, E. W. Hudson, and J. E. Hoffman

Nature Materials 11 巻頁： 585 - 589 2012年5月

Spin-Density-Wave Gap with Dirac Nodes and Two-Magnon Raman Scattering in BaFe₂As₂ 査読有り

S. Sugai, Y. Mizuno, R. Watanabe, T. Kawaguchi, K. Takenaka, H. Ikuta, Y. Takayanagi, N. Hayamizu, and Y. Sone

Journal of the Physical Society of Japan 81 巻頁： 024718 (15 pages) 2012年1月

Substrate dependence of the superconducting properties of NdFeAs(O,F) thin films 査読有り

H. Uemura, T. Kawaguchi, T. Ohno, M. Tabuchi, T. Ujihara, Y. Takeda, and H. Ikuta

Solid State Communications 152 巻頁： 735 - 739 2012年1月

Molecular Beam Epitaxy Growth of Superconducting NdFeAs(O,F) Thin Films Using a F-getter and a Novel F-doping Method 査読有り

T. Kawaguchi, H. Uemura, T. Ohno, M. Tabuchi, T. Ujihara, Y. Takeda, and H. Ikuta

Applied Physics Express 4 巻頁： 083102 (3 pages) 2011年8月

Epitaxial growth of LaFeAs(O,F) thin films by molecular beam epitaxy 査読有り

T. Kawaguchi, H. Uemura, T. Ohno, M. Tabuchi, T. Ujihara, K. Takenaka, Y. Takeda, and H. Ikuta

Physica C 471 巻頁： 1174 - 1176 2011年5月

Three energy scales characterizing the competing pseudogap state, the incoherent, and the coherent superconducting state in high-T_c cuprates 査読有り

Y. Okada, T. Kawaguchi, M. Ohkawa, K. Ishizaka, T. Takeuchi, S. Shin, and H. Ikuta

Physical Review B 83 巻頁： 104502 2011年3月

Substrate Dependence of Structural and Transport Properties in FeSe0.5Te0.5 Thin Films 査読有り

50 巻頁： 053101 (9 pages) 2011年

Epitaxial Growth of FeSe_0.5Te_0.5 Thin Films on CaF₂ Substrates with High Critical Current Density 査読有り

I. Tsukada, M. Hanawa, T. Akiike, F. Nabeshima, Y. Imai, A. Ichinose, S. Komiya, T. Hikage, T. Kawaguchi, H. Ikuta, A. and Maeda

Applied Physics Express 4 巻頁： 053101 (3 pages) 2011年

The Nodal SDW Gap and the Superconducting Gap in BaFe_2-xCo_xAs₂ 査読有り

S. Sugai, Y. Mizuno, R. Watanabe, T. Kawaguchi, K. Takenaka, H. Ikuta, K. Kiho, M. Nakajima, C. H. Lee, A. Iyo, H. Eisaki, and S. Uchida

Journal of Superconductivity and Novel Magnetism 24 巻頁： 1185 - 1189 2011年

Enhanced Growth Rate of a YBCO Bulk in the Melt-Textured Process Under 1 atm Oxygen Pressure 査読有り国際共著

S. B. Yan, Y. Y. Chen, H. Ikuta, and X. Yao

IEEE Transactions on Applied Superconductivity 20 巻頁： 66 - 70 2010年

In-situ growth of superconducting NdFeAs(O,F) thin films by Molecular Beam Epitaxy 査読有り

T. Kawaguchi, H. Uemura, T. Ohno, M. Tabuchi, T. Ujihara, K. Takenaka, Y. Takeda and H. Ikuta

Applied Physics Letter 97 巻頁： 042509 (3 pages) 2010年

Enhancement of superconducting fluctuation under the coexistence of a competing pseudogap state in Bi2Sr2-xRxCuOy 査読有り

Y. Okada, Y. Kuzuya, T. Kawaguchi, and H. Ikuta

Physical Review B 81 巻頁： 214520 (5 pages) 2010年

Systematic Comparison of Eight Substrates in the Growth of FeSe0.5Te0.5 Superconducting Thin Films 査読有り

Y. Imai, T. Akiike, M. Hanawa, I. Tsukada, A. Ichinose, A. Maeda, T. Hikage, T. Kawaguchi, and H. Ikuta

Applied Physics Express 3 巻頁： 043102 (3 pages) 2010年

Bulk sensitive soft X-ray angle-resolved photoemission spectroscopy of Bi1.72Pb0.38Sr1.88CuO6+δ 査読有り

T. Takeuchi, Y. Hamaya, H. Ikuta, T. Ohkochi, S. Fujimori, and Y. Saitoh

Journal of Physical Society of Japan 79 巻頁： 064711 (6 pages) 2010年

Growth and superconductivity of REBCO bulk processed by a seed/buffer layer/precursor construction 査読有り国際共著

T. Y. Li, L. Cheng, S. B. Yan, L. J. Sun, X. Yao, Y. Yoshida and H. Ikuta

Superconductor Science and Technology 23 巻頁： 125002 (4 pages) 2010年

Imaging nanoscale Fermi-surface variations in an inhomogeneous superconductor 査読有り国際共著

W. D. Wise, K. Chatterjee, M. C. Boyer, T. Kondo, T. Takeuchi, H. Ikuta, Z. Xu, J. Wen, G. D. Gu, Y. Wang and E. W. Hudson

Nature Physics 5 巻頁： 213 - 216 2009年

*Epitaxial Growth of NdFeAsO Thin Films by Molecular Beam Epitaxy 査読有り

T. Kawaguchi, H. Uemura, T. Ohno, R. Watanabe, M. Tabuchi, T. Ujihara, K. Takenaka, Y. Takeda, and H. Ikuta

Applied Physiscs Express 2 巻頁： 093002 (3 pages) 2009年

The qualitative change in decomposition of c-oriented Sm-123 films due to a minor change in substitution of a-oriented grains 査読有り国際共著

L. Cheng, C. Y. Tang, X. Q. Xu, L. J. Sun, W. Li, X. Yao, Y. Yoshida, and H. Ikuta

Journal of Physics D: Applied Physics 42 巻頁： 175303 (7 pages) 2009年

Effect of Ln-Site Disorder on Tc of Oxypnictide SuperconductorLnFeAsO1-xFx (Ln=Nd, Ce-Gd, and La-Dy) 査読有り

K. Takenaka, R. Watanabe, H. Yamada, M. Tabuchi,Y. Takeda, and H. Ikuta

Journal of Physical Society of Japan 78 巻頁： 073701 (4 pages) 2009年

Melt-textured growth of (LRE)-Ba-Cu-O by a cold seeding method using SmBa2Cu3Oy thin film as a seed 査読有り

M. Oda, X. Yao, Y. Yoshida, and H. Ikuta

Superconductor Science and Technology 22 巻頁： 075012 (6 pages) 2009年

Momentum dependence of the energy gap in the superconducting state of optimally doped Bi2(Sr,R)2CuOy (R=La and Eu) 査読有り

Y. Okada, T. Takeuchi, M. Ohkawa, A. Shimoyamada, K. Ishizaka, T. Kiss, S. Shin, and H. Ikuta

Journal of Physics: Conference Series 150 巻頁： 052197 (4 pages) 2009年

Factors Affecting Extreme Ultraviolet Reflectivity of Mo/Si Multilayer Films Synthesized by Superconducting Magnetron Sputtering 査読有り

U. Mizutani, T. Yamaguchi, T. Tomofuji, Y. Yanagi, Y. Itoh, K. Saitoh, N. Tanaka, N. Matsunami, and H. Ikuta

Japanese Journal of Applied Physics 48 巻頁： 025507 (6 pages) 2009年

*Development of a magnetron sputtering system with an extraordinary strong magnetic field near the target 査読有り

H. Ikuta, K. Yokouchi, I. Ohta, Y. Yanagi, and Y. Itoh

Vacuum 83 巻頁： 475 - 478 2009年

Magnetic and thermoelectric properties of quasi-one-dimensional oxides An+2CoBnO3n+3 (A=Ca, Sr, B=Co, Rh, Ir; n=1--3) 査読有り

T. Takami and H. Ikuta

Journal of Applied Physics 103 巻頁： 07B701 (3 pages) 2008年

The influence of out-of-plane disorder on the formation of pseudogap and Fermi arc in Bi2Sr2-xRxCuOy (R=La and Eu) 査読有り

Y. Okada, T. Takeuchi, A. Shimoyamada, S. Shin, H. Ikuta

Journal of Physics and Chemistry of Solids 69 巻頁： 2989 - 2992 2008年

Charge-density-wave origin of cuprate checkerboard visualized by scanning tunnelling microscopy 査読有り国際共著

W. D. Wise, M. C. Boyer, K. Chatterjee, T. Kondo, T. Takeuchi, H. Ikuta, Y. Wang, and E. W. Hudson

Nature Physics 4 巻頁： 696 - 699 2008年

Origin of the Anomalously Strong Influence of Out-of-Plane Disorder on High-Tc Superconductivity 査読有り

Y. Okada, T. Takeuchi, T. Baba, S. Shin, and H. Ikuta

Journal of Physical Society of Japan 77 巻頁： 074714 (4 pages) 2008年

Reflective properties of Mo/Si multilayer for EUV lithography deposited by the magnetron sputtering device with superconducting bulk magnets 査読有り

T. Yamaguchi, H. Ikuta, T. Tomofuji, Y. Yanagi, Y. Itoh, T. Oka, and U. Mizutani

Physica C 468 巻頁： 2170 - 2173 2008年

Muon-spin rotation and relaxation study on the quasi-one-dimensional compounds Ca3CoRhO6, Sr4CoRh2O9, and Sr5CoRh3O12 査読有り国際共著

J. Sugiyama, H. Nozaki, Y. Ikedo, P. L. Russo, K. Mukai, D. Andreica, A. Amato, T. Takami, and H. Ikuta

Physical Review B 77 巻頁： 092409 (4 pages) 2008年

Local measurements of the magnetization process of bulk superconductors induced by a pulsed magnetic field 査読有り

H. Ikuta, M. Tokuyama and Y. Yanagi

Journal of Physics: Conference Series 97 巻頁： 012297 (7 pages) 2008年

Effect of element substitution on the superconducting properties of Gd-based melt-processed bulk-superconductors 査読有り

M. Oda and H. Ikuta

Journal of Physics: Conference Series 97 巻頁： 012071 (5 pages) 2008年

Fabrication of Mo/Si multilayer mirrors for extreme ultraviolet lithography by means of superconducting bulk magnet magnetron sputtering 査読有り

U. Mizutani, T. Yamaguchi, H. Ikuta, T. Tomofuji, Y. Yanagi, Y. Itoh, and T. Oka

Physica C 468 巻頁： 1456 - 1460 2008年

Effect of element substitution on the superconducting properties of Gd-based melt-processed bulk-superconductors 査読有り

M. Oda and H. Ikuta

Journal of Physics: Conference Series 97 巻頁： 012071 (5 pages) 2008年

Construction of superconducting bulk magnet magnetron sputtering apparatus for fabrication of highly reflective optical mirrors 査読有り

U. Mizutani, T. Yamaguchi, H. Ikuta, T. Tomofuji, Y. Yanagi, Y. Itoh, and T. Oka

Materials Science and Engineering B 151 巻頁： 84 - 89 2008年

The effect of Ca doping on the properties of melt-processed Gd-based bulk superconductors 査読有り

M. Oda and H. Ikuta

Materials Science and Engineering B 151 巻頁： 11 - 15 2008年

Visualization of the interplay between high-temperature superconductivity, the pseudogap and impurity resonances 査読有り国際共著

K. Chatterjee, M. C. Boyer, W. D. Wise, T. Kondo, T. Takeuchi, H. Ikuta, and E. W. Hudson

Nature Physics 4 巻頁： 108 - 111 2008年

Magnetic properties of one-dimensional compounds An+2Con+1O3n+3 (A=Ca, Sr, Ba; n=1-5) 査読有り

T. Takami, H. Nozaki, J. Sugiyama, and H. Ikuta

Journal of Magnetism and Magnetic Materials 310 巻頁： e438 - e440 2007年

Antiferromagnetic spin structure in BaCoO3 below 15 K determined by neutron and μ+SR 査読有り国際共著

H. Nozaki, M. Janoschek, B. Roessli, J. Sugiyama, L. Keller, J. H. Brewer, E. J. Ansaldo, G. D. Morris, T. Takami, and H. Ikuta

Journal of Physics and Chemistry of Solids 68 巻頁： 2162 - 2165 2007年

*Correlation between the structure and the spin state in R1-xSrxCoO3 (R=La, Pr, and Nd) 査読有り国際共著

T. Takami, J.-S. Zhou, J. B. Goodenough, and H. Ikuta

Physical Review B 76 巻頁： 144116 (7 pages) 2007年

*Imaging the two gaps of the high-temperature superconductor Bi2Sr2CuO6+x 査読有り国際共著

M. C. Boyer, W. D. Wise, K. Chatterjee, M. Yi, T. Kondo, T. Takeuchi, H. Ikuta, and E. W. Hudson

Nature Physics 3 巻頁： 802 - 806 2007年

Development of a magnetron sputtering apparatus equipped with superconducting bulk magnets for the preparation of optical multilayer films 査読有り

T. Yamaguchi, H. Ikuta, Y. Yanagi, Y. Itoh, T. Oka and U. Mizutani

Physica C 463-465 巻頁： 1342 - 1345 2007年

Local measurement of the pulsed field magnetization process of melt-processed bulk superconductor 査読有り

M. Tokuyama, Y. Yanagi, and H. Ikuta

Physica C 463-465 巻頁： 405 - 409 2007年

Effect of impurity doping on the superconducting properties of melt-processed bulk superconductors depending on the substituting site 査読有り

M. Oda and H. Ikuta

Physica C 463-465 巻頁： 379 - 382 2007年

Creation of Nanomagnetite Aggregated Iron Oxide Hydroxide for Magnetically Removal of Fluoride and Phosphate from Wastewater 査読有り

A. Eskandarpour, K. Sassa, Y. Bando, H. Ikuta, K. Iwai, M. Okido, and S. Asai

ISIJ International 47 巻頁： 558 - 562 2007年

Neutron diffraction and μSR study on the antiferromagnet BaCoO3 査読有り国際共著

H. Nozaki, M. Janoschek, B. Roessli, J. Sugiyama, L. Keller, J. H. Brewer, E. J. Ansaldo, G. D. Morris, T. Takami, and H. Ikuta

Physical Review B 76 巻頁： 014402 (7 pages) 2007年

The R dependence of the phase diagram of Bi2Sr2-xRxCuOy and its implication on high temperature superconductivity 査読有り

Y. Okada, T. Takeuchi, T. Baba, S. Shin, and H. Ikuta

Physica C 460-462 巻頁： 440 - 441 2007年

Site depending impurity effect on the properties of melt-processed bulk superconductors 査読有り

M. Oda and H. Ikuta

Physica C 460-462 巻頁： 301 - 304 2007年

Quantitate evaluation of the thermoelectric power of (Bi,Pb)2Sr2CaCu2O8+δ from the experimentally determined electronic structure 査読有り

T. Takeuchi, H. Kaga, Y. Okada, H. Ikuta, T. Baba, S. Tsuda, S. Shin

Journal of Electron Spectroscopy and Related Phenomena 156-158 巻頁： 452 - 456 2007年

Two dimensionality in quasi-one-dimensional cobalt oxides confirmed by muon-spin spectroscopy 査読有り国際共著

J. Sugiyama, H. Nozaki, Y. Ikedo, K. Mukai, D. Andreica, A. Amato, J. H. Brewer, E. J. Ansaldo, G. D. Morris, T. Takami, and H. Ikuta

Journal of Magnetism and Magnetic Materials 310 巻頁： 2719 - 2721 2007年

Bottom-coverage simulation for magnetron sputtering apparatus activated with superconducting bulk magnet 査読有り

T. Yamazaki, T. Yoshizawa, H. Hazama, S. Hirobayashi, T. Yamabuchi, H. Ikuta, U. Mizutani, and T. Matsuda

Vacuum 80 巻頁： 675 - 678 2006年

R dependence of superconductivity and thermopower in the Bi2Sr2-xRxCuOy (R=La, Sm and Eu) system 査読有り

Y. Okada and H. Ikuta

Physica C 445-448 巻頁： 84 - 86 2006年

Particle size dependence of magnetization and phase transition near TN in multiferroic BiFeO3 査読有り国際共著

R. Mazumder, S. Ghosh, P. Mondal, D. Bhattacharya, S. Dasgupta, N. Das, A. Sen, A. K. Tyagi, M. Sivakumar, T. Takami, and H. Ikuta

Journal of Applied Physics 100 巻頁： 033908 (9 pages) 2006年

Fabrication of Zinc Ferrite Nanocrystals by Sonochemical Emulsification and Evaporation: Observation of Magnetization and Its Relaxation at Low Temperature 査読有り国際共著

M. Sivakumar, T. Takami, H. Ikuta, A. Towata, K. Yasui, T. Tuziuti, T. Kozuka, D. Bhattacharya, and Y. Iida

Journal of Physical Chemistry B 110 巻頁： 15234 - 15243 2006年

The Effect of Element Substitution on Thermoelectric Properties of the One-dimensional Homologous Series An+2Con+1O3n+3 査読有り

T. Takami and H. Ikuta

Transactions of the Materials Research Society of Japan 31 巻頁： 379 - 382 2006年

Electronic structure and the thermoelectric power of Na0.6CoO2 and Ca3Co4O9 layered cobalt oxides 査読有り

T. Kitao, T. Takeuchi, T. Kondo, H. Ikuta, M. Mikami, M. Shikano and R. Funahashi

Transactions of the Materials Research Society of Japan 31 巻頁： 367 - 370 2006年

Evidence of Two Dimensionality in Quasi-One-Dimensional Cobalt Oxides 査読有り国際共著

J. Sugiyama, H. Nozaki, Y. Ikedo, K. Mukai, D. Andreica, A. Amato, J. H. Brewer, E. J. Ansaldo, G. D. Morris, T. Takami, and H. Ikuta

Physical Review Letters 96 巻頁： 197206 (4 pages) 2006年

Two-dimensionality in quasi one-dimensional cobalt oxides 査読有り国際共著

J. Sugiyama, H. Nozaki, J. H. Brewer, E. J. Ansaldo, G. D. Morris, T. Takami, H. Ikuta, and U. Mizutani

Physica B 374-375 巻頁： 286 - 289 2006年

Electronic inhomogeneity of heavily overdoped Bi_2-x_Pb_x_Sr_2_CuO_y_ studied by low-temperature scanning tunneling microscopy/spectroscopy 査読有り

H. Mashima, N. Fukuo, Y. Matsumoto, G. Kinoda, T. Kondo, H. Ikuta, T. Hitosugi, and T. Hasegawa

Physical Review B 73 巻頁： 060502 (4 pages) 2006年

The influence of Zn on the superconducting properties of 30 mm diameter melt-textured Dy-Ba-Cu-O bulk superconductors 査読有り

B. Latha, H. Ikuta, T. Yamada, and U. Mizutani

Superconductor Science and Technology 18 巻頁： 1016-1022 2005年

Scanning Tunneling Microscopy/Spectroscopy of Heavily Overdoped Bi_2_Sr_2_CuO_y_ Single Crystals 査読有り

H. Mashima, N. Fukuo, G. Kinoda, T. Hitosugi, T. Shimada, T. Kondo, Y. Okada, H. Ikuta, Y. Matsumoto, and T. Hasegawa

AIP Conference Proceedings 850 巻頁： 509-510 2005年

Electronic structure and its contribution to the thermoelectric power of Ca_3_Co_4_O_9_ and Na_x_CoO_2_ layered cobalt oxides 査読有り

T. Takeuchi, T. Kitao, T. Kondo, M. Mikami, M. Shikano, R. Funahashi, and H. Ikuta

Proceedings of the 2005 International Conference on Thermoelectrics (ICT2005) 頁： 477-450 2005年

Thermoelectric Properties of One-dimensional Cobalt Oxide Ca_3_Co_2_O_6_ and the effect of Zn doping 査読有り

T. Takami and H. Ikuta

Proceedings of the 2005 International Conference on Thermoelectrics (ICT2005) 頁： 473-476 2005年

Generation of strong magnetic field using 60 mmφ superconducting bulk magnet and its application to magnetron sputtering device 査読有り

Y. Yanagi, T. Matsuda, H. Hazama, K. Yokouchi, M. Yoshikawa, Y. Itoh, T. Oka, H. Ikuta, and U. Mizutani

Physica C 426-431 巻頁： 764-769 2005年

The effect of impurities on the local and bulk properties of melt-processed superconductors 査読有り

H. Ikuta, T. Iwasaki, and U. Mizutani

Physica C 426-431 巻頁： 608-612 2005年

The relation between the scaling behavior of thermopower and the band structure in high-T_c_ superconductors 査読有り

Y. Okada, H. Ikuta, T. Kondo and U. Mizutani

Physica C 426-431 巻頁： 386-389 2005年

Appearance of a two-dimensional antiferromagnetic order in quasi-one-dimensional cobalt oxides 査読有り国際共著

J. Sugiyama, H. Nozaki, J. H. Brewer, E. J. Ansaldo, T. Takami, H. Ikuta, and U. Mizutani

Physical Review B 72 巻頁： 064418 (11 pages) 2005年

Magnetron Sputtering Activated by 60 mmφ Superconducting Bulk Magnet 査読有り

U. Mizutani, H. Hazama, T. Matsuda, Y. Yanagi, Y. Itoh, H. Ikuta, K. Sakurai, and A. Imai

Superconductor Science and Technology 18 巻頁： S30-S33 2005年

Pulsed Field Magnetization of a 36 mm-diameter Single Domain Sm-Ba-Cu-O Bulk Superconductor at 30, 35 and 77 K 査読有り

Y. Yanagi, Y. Itoh, M. Yoshikawa, T. Oka, H. Ikuta, and U. Mizutani

Superconductor Science and Technology 18 巻頁： 839-849 2005年

Tomonaga-Luttinger Liquid-Fermi Liquid Transition in Chain of PrBa_2_Cu_4_O_8_ 査読有り

S. Sugai, N. Kaji, A. Osuka, K. Takenaka, S. Horii, and H. Ikuta

Journal of Physical Society of Japan 74 巻頁： 871-874 2005年

*Melt processing of (rare earth)-Ba-Cu-O bulk superconductors 査読有り

H. Ikuta, T. Yamada, M. Yoshikawa, Y. Yanagi, Y. Itoh, B. Latha, and U. Mizutani

Superconductor Science and Technology 18 巻頁： S119-S125 2005年

Low Pressure Magnetron Sputtering by Using Extremely Strong Magnetic Field and Coverage Properties of Copper Films Grown as Advanced Seed Layer 査読有り

H. Hazama, A. Imai, T. Matsuda, U. Mizutani, H. Ikuta, Y. Yanagi, Y. Itoh, K. Sakurai, A. Sekiguchi, T. Yamazaki

Proceedings of The Advanced Metallization Conference in Asia 2003 (ADMETA 2003) 頁： 681-686 2004年

Non-Fermi-liquid behavior in an undoped single crystal of CeRh_2_Ga 査読有り

G. F. Chen, I. Sakamoto, S. Ohara, T. Takami, H. Ikuta, U. Mizutani

Physical Review B 69 巻頁： 014420 2004年

Effects of Zn Doping on the Superconducting Properties of the Melt Textured Dy-Ba-Cu-O Bulk Superconductors 査読有り

B. Latha, H. Ikuta, U. Mizutani

Japanese Journal of Applied Physics 43 巻頁： 970-975 2004年

Magnetic and transport properties of the mixed-valent compound YbRh_2_Ga 査読有り

G. F. Chen, I. Sakamoto, S. Ohara, T. Takami, H. Ikuta, U. Mizutani

Physical Review B 69 巻頁： 054435 2004年

Preparation of melt-textured YBa_2_Cu_3_O_7-δ_ bulk with CeO_2_ additions and their superconducting properties 査読有り

A. Takagi, T. Miyamoto, H. Ikuta, U. Mizutani

Physica C 412-414 巻頁： 586-591 2004年

Annealing melt-processed Sm-Ba-Cu-O bulk superconductors under 10 atm oxygen 査読有り

T. Iwasaki, H. Ikuta, M. Yoshikawa, Y. Yanagi, Y. Itoh, U. Mizutani

Physica C 412-414 巻頁： 580-585 2004年

Enhancement of Critical Currents and Trapped Fields of Melt textured ZnO doped Dy-Ba-Cu-O Bulk Superconductors 査読有り

B. Latha, H. Ikuta, U. Mizutani

Physica C 412-414 巻頁： 566-570 2004年

Influences of oxygen pressure and substrate temperature on the quality of NdBa_2_Cu_3_O_x_ thin films prepared by pulsed laser deposition 査読有り

Y. Ichino, Y. Yoshida, Y. Takai, K. Matsumoto, H. Ikuta, U. Mizutani

Superconductor Science and Technology 17 巻頁： 775-780 2004年

Contribution of electronic structure to the large thermoelectric power in layered cobalt oxides 査読有り

T. Takeuchi, T. Kondo, T. Takami, H. Takahashi, H. Ikuta, U. Mizutani, K. Soda, R. Funahashi, M. Shikano, M. Mikami, S. Tsuda, T. Yokoya, S. Shin, T. Muro

Physical Review B 69 巻頁： 125410 2004年

Generation of Extremely Strong Magnetic Fields in Open Space by using Metal-Ring-Reinforced 60 mm Sm-Ba-Cu-O Superconducting Bulk 査読有り

Y. Yanagi, M. Yoshikawa, Y. Itoh, T. Oka, H. Ikuta, U. Mizutani

Physica C 412-414 巻頁： 744-749 2004年

Thermoelectric properties of A_n+2_Co_n+1_O_3n+3_ (A=Ca, Sr, Ba, n=1~5) 査読有り

T. Takami, H. Ikuta and U. Mizutani

Japanese Journal of Applied Physics 43 巻頁： 8208-8212 2004年

溶融バルク超伝導体への不純物添加効果査読有り

生田博志、水谷宇一郎

金属学会誌 68 巻頁： 688-692 2004年

Bottom Coverage of Cu Deposit for 200 nm-Class Circular Vias with High Aspect Ratios by Using Magnetron Sputtering Activated with Superconducting Bulk Magnet 査読有り

H. Hazama, T. Matsuda, U. Mizutani, H. Ikuta, Y. Yanagi, Y. Itoh, K. Sakurai, A. Sekiguchi, A. Imai

Japanese Journal of Applied Physics 43 巻頁： 6026-6031 2004年

Application of 60 mm-diameter Superconducting Bulk Magnet to Magnetron Sputtering 査読有り

U. Mizutani, H. Hazama, T. Matsuda, Y. Yanagi, Y. Itoh, H. Ikuta, A. Imai, A. Sekiguchi, K. Sakurai

Transactions of the Materials Research Society of Japan 29 巻頁： 1293-1298 2004年

Thermoelectric properties of (R,Sr)CoO_3_ (R=La, Pr, Nd, Sm) 査読有り

T. Takami, H. Ikuta, U. Mizutani

Transactions of the Materials Research Society of Japan 29 巻頁： 2777-2780 2004年

Construction of a Strong Magnetic Field Generator with Use of Melt-Processed Bulk Superconductors 査読有り

T. Oka, K. Yokoyama, Y. Itoh, H. Ikuta, U. Mizutani, H. Okada, K. Katagiri, K. Noto

IEEE Transactions on Applied Superconductivity 13 巻頁： 1584-1587 2003年

Field trapping capability of melt-processed (Nd-Eu-Gd)-Ba-Cu-O bulk superconductors 査読有り

T. Yamada, H. Ikuta, M. Yoshikawa, Y. Yanagi, Y. Itoh, U. Mizutani

Physica C 392-396 巻頁： 623-627 2003年

Position Dependence of Superconducting Properties of Large Single Domain Sm-Ba-Cu-O Bulk Superconductors Prepared under various Conditions 査読有り

B. Latha, M. Yoshikawa, Y. Yanagi, T. Yamada, Y. Itoh, H. Ikuta, U. Mizutani

Physica C 392-396 巻頁： 521-525 2003年

Metal-organic deposition of RE-Ba-Cu-O (RE=Dy, Ho, Er, and Tm) films using trifluoroacetates 査読有り

T. Iguchi, T. Araki, Y. Yamada, H. Ikuta, I. Hirabayashi, Y. Shiohara, U. Mizutani

Physica C 392-396 巻頁： 900-904 2003年

Single domain, c-axis oriented (Nd-Eu-Gd)-Ba-Cu-O bulk superconductors 査読有り

T. Yamada, H. Ikuta, Y. Itoh, U. Mizutani

Superconductor Science and Technology 16 巻頁： 827-831 2003年

Magnetic confinement of weakly ionized plasma with superconducting bulk magnets 査読有り

H. Matsuzawa, K. Ohishi, K. Ishikawa, T. Morita, M. Yoshikawa, H. Ikuta, U. Mizutani

Applied Physics Letter 82 巻頁： 2850-2852 2003年

Purely viscous motion of the vortices in semiclassical d-wave superconductor 査読有り

Y. Matsuda, K. Izawa, A. Shibata, H. Ikuta, M. Hasegawa, Y. Kato

Physica C 388-389 巻頁： 709 2003年

Low-temperature specific heat of overdoped Bi2201 single crystals 査読有り

H. Ikuta, M. Matsuura, T. Biwa

Physica C 388-389 巻頁： 361 2003年

Dimensional crossover phenomena in PrBa_2_Cu_4_O_8_ 査読有り国際共著

M. N. McBrien, N. E. Hussey, L. Balicas, S. Horii, H. Ikuta

Physica C 388-389 巻頁： 327 2003年

Cryogenic STM/STS observations of Pb-doped Bi_2_Sr_2_CuO_y_ single crystals 査読有り

H. Mashima, G. Kinoda, H. Ikuta, T. Hasegawa

Physica C 388-389 巻頁： 275 2003年

Application of RE123-bulk Superconductors as a Permanent Magnet in Magnetron Sputtering Film Deposition Apparatus 査読有り

U. Mizutani, T. Matsuda, Y. Yanagi, Y. Itoh, H. Ikuta, T. Oka

Ceramic Transactions 140 巻頁： 273-284 2003年

Application of high-T_c_ superconducting bulk magnets to the confinement of weakly ionized plasma

H. Matsuzawa, K. Ohishi, K. Ishikawa, K. Itou, T. Morita, M. Yoshikawa, H. Ikuta, U. Mizutani

Proceedings of the Third Asia-Pacific International Symposium on the Basic and Application of Plasma Technology 頁： 45-48 2003年

Performance of the magnetron sputtering apparatus equipped with 60 mm superconducting bulk magnet 査読有り

U. Mizutani, H. Hazama, T. Matsuda, Y. Yanagi, Y. Itoh, H. Ikuta, K. Sakurai, A. Imai

Superconductor Science and Technology 16 巻頁： 1207-1211 2003年

A 3 Tesla Magnetic Field Generator Using Melt-Processed Bulk Superconductors as Trapped Field Magnets and Its Applications 査読有り

T. Oka, K. Yokoyama, Y. Itoh, Y. Yanagi, M. Yoshikawa, H. Ikuta, U. Mizutani, H. Okada, K. Noto

Physica C 392-396 巻頁： 709-712 2003年

Application of 60 mm Superconducting Bulk Magnet to Magnetron Sputtering 査読有り

T. Matsuda, S. Kashimoto, A. Imai, Y. Yanagi, Y. Itoh, H. Ikuta, U. Mizutani, K. Sakurai, H. Hazama

Physica C 392-396 巻頁： 696-703 2003年

超伝導永久磁石を用いたマグネトロンスパッタ装置招待有り査読有り

生田博志、水谷宇一郎

日本応用磁気学会誌 27 巻頁： 653-658 2003年

基礎講座　超伝導バルク材料とその応用技術招待有り査読有り

生田博志

応用物理 72 巻頁： 742-746 2003年

Fabrication of Gd-Ba-Cu-O films by the metal-organic deposition method using trifluoroacetates 査読有り

T. Iguchi, T. Araki, Y. Yamada, I. Hirabayashi, H. Ikuta

Superconductor Science and Technology 15 巻頁： 1415 2002年

A Strong Magnetic Field Generator Using Superconducting Bulk Magnets

T. Oka, K. Yokoyama, Y. Itoh, Y. Yanagi, M. Yoshikawa, H. Ikuta, U. Mizutani, K. Noto

Proceedings of the 6th Meeting of Symposium on New Magneto-Science 2002 頁： 81-85 2002年

Angle-resolved photoemission study of Zn-doped PrBa_2_Cu_4_O_8_: Possible observation of single-particle spectral function for a Tomonaga-Luttinger liquid 査読有り

T. Mizokawa, K. Nakada, C. Kim, Z.-X. Shen, T. Yoshida, A. Fujimori, S. Horii, Yuh Yamada, H. Ikuta, and U. Mizutani

Physical Review B 65 巻頁： 193101 2002年

On the dimensionality of the Cu-O double-chain site of PrBa_2_Cu_4_O_8_ 査読有り国際共著

S. Horii, H. Takagi, H. Ikuta, N. E. Hussey, I. Hirabayashi, U. Mizutani

Physical Review B 66 巻頁： 054530 2002年

Growth and properties of thermoelectric oxide whiskers 査読有り

R. Funahashi, H. Ikuta, T. Takeuchi, U. Mizutani, I. Matsubara, M. Shikano

Oxide Thermoelectrics 頁： 83-99 2002年

Three-dimensional Fermi-liquid ground state in the quasi-one-dimensional cuprate PrBa_2_Cu_4_O_8_ 査読有り国際共著

N. E. Hussey, M. N. McBrien, L. Balicas, J. S. Brooks, S. Horii, H. Ikuta

Physical Review Letter 89 巻頁： 086601 2002年

Free flux flow resistivity in strongly overdoped high-T_c_ cuprate; purely viscous motion of the vortices in semiclassical d-wave superconductor 査読有り

Y. Matsuda, A. Shibata, K. Izawa, H. Ikuta, M. Hasegawa, Y. Kato

Physical Review B 66 巻頁： 014527 2002年

Zn-substitution effect on the optical properties of PrBa_2_Cu_4_O_8_ 査読有り

K. Takenaka, A. Osuka, S. Sugai, K. Nakada, S. Horii, H. Ikuta, U. Mizutani

Physica C 383 巻頁： 227-231 2002年

Transport Properties and Magnetoresistance of (RE,Sr)_2_NiO_4_ (RE=Pr, Nd, Sm and Eu) 査読有り

K. Sugiyama, H. Nozaki, T. Takeuchi, H. Ikuta

Journal of Physics and Chemistry of Solids 63 巻頁： 979-982 2002年

Oxygen diffusivity in melt-processed SmBCO and YBCO bulk-superconductors 査読有り

T. Yamada, H. Ikuta, M. Yoshikawa, Y. Yanagi, Y. Itoh, T. Oka, U. Mizutani

Physica C 378-381 巻頁： 713-717 2002年

Extracting the utmost from the high performance of Sm-Ba-Cu-O bulk superconductors by pulse field magnetization 査読有り

H. Ikuta, H. Ishihara, Y. Yanagi, Y. Itoh, U. Mizutani

Superconductor Science and Technology 15 巻頁： 606-612 2002年

Metallic c-axis transport across insulating planes in PrBa_2_Cu_4_O_8_ 査読有り国際共著

M. N. McBrien, N. E. Hussey, P. J. Meeson, S. Horii, H. Ikuta

Journal of Physical Society of Japan 71 巻頁： 701-704 2002年

Synthesis and magnetization of high-T_c_ bulk superconductors and their application as superconducting permanent magnets 査読有り

U. Mizutani, H. Ikuta, T. Oka, Y. Itoh, Y. Yanagi, M. Yoshikawa

International J. Appl. Electromagnetics and Mechanics 14 巻頁： 57-63 2002年

Co系長尺酸化物ウィスカーの成長と熱電特性

舟橋良次、生田博志、鹿野昌弘、松原一郎、水谷宇一郎

紛体および粉末冶金 49 巻頁： 393-399 2002年

超電導バルク磁石を使った3.15 T強磁場発生装置の開発査読有り

岡徹雄、横山和哉、伊藤佳孝、柳陽介、吉川雅章、生田博志、水谷宇一郎、岡田秀彦、能登宏七

低温工学 37 巻頁： 689-696 2002年

バルク超電導体のパルス着磁技術

岡徹雄、伊藤佳孝、柳陽介、吉川雅章、生田博志、水谷宇一郎

日本AEM学会誌 10 巻頁： 136-142 2002年

Topology of the Fermi surface and Band Structure near the Fermi level in the Pb-doped Bi_2_Sr_2_CuO_6+δ_ superconductor 査読有り

T. Takeuchi, T. Yokoya, S. Shin, K. Jinno, M. Matsuura, T. Kondo, H. Ikuta, and U. Mizutani

Journal of Electron Spectroscopy and Related Phenomena 114-116 巻頁： 629 2001年

Growth and Thermoelectric Properties of CoO_2_-Based Whiskers

R. Funahashi, I. Matsubara, H. Ikuta, T. Takeuchi, U. Mizutani

Proceedings of the Sixth European Workshop on Thermoelectrics of the European Thermoelectric Society 頁： 36-39 2001年

Synthesis and Thermoelectric Properties of Co-Based Oxide Whiskers

R. Funahashi, I. Matsubara, H. Ikuta, T. Takeuchi, U. Mizutani

Proceedings of the 20th International Conference on Thermoelectrics 頁： 180-183 2001年

Melt-Processing of High-Performance RE-Ba-Cu-O/Ag (RE=Sm, Nd) Bulk-Superconductors

H. Ikuta

Proceedings of the 4^th^ Japan-Central Europe Joint Workshop on Energy and Information in Non-Linear Systems 頁： 190-193 2001年

Epitaxial growth of REBa_2_Cu_3_O_7-y_ films on various substrates by chemical solution deposition 査読有り

K. Yamagiwa, T. Araki, Y. Takahashi, H. Hiei, S. B. Kim, K. Matsumoto, J. Shibata, T. Hirayama, H. Ikuta, U. Mizutani, I. Hirabayashi

Journal of Crystal Growth 229 巻頁： 353-357 2001年

The Effects of Process Conditions on YBa_2_Cu_3_O_7-x_ Films by Metalorganic Deposition (MOD) Method using Trifluoroacetates 査読有り

T. Araki, K. Yamagiwa, Y. Takahashi, S. B. Kim, I. Hirabayashi, H. Hiei, U. Mizutani, H. Ikuta

Ceramic Transactions 112 巻頁： 293-298 2001年

Preparation of YBa_2_Cu_3_O_7-y_ Thin Films by Chemical Solution Deposition Method on CeO_2_ and Y_2_O_3_ Buffer Layers 査読有り

H. Hiei, U. Mizutani, H. Ikuta, K. Yamagiwa, Y. Takahashi, S. B. Kim, I. Hirabayashi, J. Shibata, T. Hirayama

Ceramic Transactions 112 巻頁： 287-292 2001年

First-order vortex phase transition in Bi_2_Sr_2_CaCu_2_O_y_ single crystals with different carrier concentrations studied by resistivity measurements 査読有り

S. Watauchi, H. Ikuta, H. Kobayashi, J. Shimoyama, and K. Kishio

Physical Review B 64 巻頁： 064520 2001年

記述言語：英語掲載種別：研究論文（学術雑誌）

The first-order vortex phase transition (FOT) in Bi_2_Sr_2_CaCu_2_O_y_ single crystals with different carrier concentrations was investigated by measuring the in-plane resistivity (r_ab_) under magnetic field applied parallel to the crystallographic c-axis direction. With decreasing the temperature, r_ab_ dropped sharply at the FOT temperature when the applied field was smaller than the second-peak-field (H_pk_) that was determined by measuring the magnetic hysteresis curves at 25-30 K, while no such an abrupt change was observed when the applied field was larger than H_pk_. The temperature range where the FOT was observed was approximately between 0.6 to 0.95 in the scale of the reduced temperature (t=T/T_c_) for all crystals. The first-order transition field (H_t_) as a function of t shifted to higher fields as the carrier concentration of the crystal increased, which can be well scaled by the electromagnetic anisotropy factor (g). Irrespective of the carrier doping level, the temperature dependence of H_t_ is experimentally expressed better by H_t_=a(t^-1^-t), rather than the functional form proposed by the conventional decoupling theory of vortex lattice (H_t_=a(t^-1^-1)). This experimental formula can be accounted for by the decoupling theory if the temperature dependence of the magnetic penetration depth is assumed to scale as l^-2^=a(1-t^2^).

Non-cuprate thin films as candidates of seed layer for liquid phase epitaxy process 査読有り

T. Miura, Y. Yamada, T. Suga, D. Huang, S. B. Kim, T. Maeda, I. Hirabayashi, H. Ikuta, and U. Mizutani

Physica C 357-360 巻頁： 983 2001年

YBCO Thin Films on Multilayers Prepared by All-Chemical Solution Deposition Processing 査読有り

H. Hiei, K. Yamagiwa, Y. Takahashi, S. B. Kim, Y. Yamada, J. Shibata, T. Hirayama, H. Ikuta, I. Hirabayashi, and U. Mizutani

Physica C 357-360 巻頁： 942 2001年

記述言語：英語掲載種別：研究論文（学術雑誌）

The chemical solution deposition (CSD) technique has been applied to prepare both YBa_2_Cu_3_O_7-d_ (YBCO) and buffer layers on a YSZ substrate. Y_2_O_3_ and CeO_2_ were employed as the buffer layers, and it was confirmed that they grew epitaxially by the CSD method. Cross-sectional TEM observations revealed that Y_2_O_3_ grew up to the top of the film. Furthermore, the YBCO film on the Y_2_O_3_ or CeO_2_/Y_2_O_3_ layers were c-axis aligned and showed a good in-plane alignment. The transition temperature and the critical current density of the YBCO/Y_2_O_3_/YSZ multilayer were 89 K and 4.0x10^4^ A/cm^2^ at 77 K, 0T, respectively.

Melt-Processing and the Performance as a Superconducting Permanent Magnet of RE-Ba-Cu-O/Ag (RE=Sm, Nd) 査読有り

H. Ikuta, Y. Yanagi, M. Yoshikawa, Y. Itoh, T. Oka, and U. Mizutani

Physica C 357-360 巻頁： 837 2001年

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

The amount of magnetic flux that a melt-processed bulk-superconductor can trap has drastically increased recently by the successful synthesis of single domain RE-Ba-Cu-O (RE=Sm, Nd) samples with the addition of Ag. As a result of this progress in processing, it became increasingly important to develop an efficient and practical magnetization technique to extract the potential of the material in applications that use melt-grown superconductors as quasi-permanent magnets. We review our recent works on the melt-growth technique as well as the pulse field magnetization studies. Using these techniques, we have constructed a magnetic field generator, the performance of which is evaluated in this study.

Improvement of the Microstructure of Melt-Processed Sm-Based Superconductors 査読有り

K. Tazoe, H. Ikuta, M. Yoshikawa, Y. Yanagi, Y. Itoh, T. Oka, and U. Mizutani

Physica C 357-360 巻頁： 807 2001年

記述言語：英語掲載種別：研究論文（学術雑誌）

We report on the effect of the atmosphere during the decomposition of the precursors of Sm-Ba-Cu-O bulk superconductors. It was found that the formation of voids was greatly suppressed by two methods, melting in an oxygen gas atmosphere or in vacuum. For both meth-ods, the atmosphere during crystallization was switched to an Ar-gas flowing one. The samples prepared by these methods exhibited high superconducting transition temperatures with sharp transition widths. However, the zero-field critical current density was lower than that of the reference sample, which was prepared by decomposing the precursor in an Ar-gas flowing atmosphere.

Pulsed Field Magnetization of Melt-Processed Sm-Ba-Cu-O 査読有り

H. Ishihara, H. Ikuta, Y. Itoh, Y. Yanagi, M. Yoshikawa, T. Oka, and U. Mizutani

Physica C 357-360 巻頁： 763 2001年

記述言語：英語掲載種別：研究論文（学術雑誌）

We studied the dynamical motion of flux lines in a melt-processed Sm-Ba-Cu-O bulk-superconductor driven by a magnetic pulse using seven small Hall sensors. The time dependence of the magnetic flux density was measured on a crystalline facet line and on an inter-facet region. It was observed that flux lines move faster along the inter-facet region, and a larger amount of magnetic flux is trapped in the facet regions after the application of a magnetic pulse. A comparatively larger pinning effect in the facet region is considered to be responsible for these observations.

Effect of Zn Substitution on the One-Dimensional Metallic Behavior of PrBa_2_Cu_4_O_8_ 査読有り

K. Nakada, H. Ikuta, S. Horii, H. Nozaki, I. Hirabayashi, and U. Mizutani

Physica C 357-360 巻頁： 186 2001年

記述言語：英語掲載種別：研究論文（学術雑誌）

We have grown PrBa_2_(Cu_1-x_Zn_x_)_4_O_8_ single crystals with nominal compositions of x=0, 0.05, 0.10, and 0.15, and measured the resistivity along a- and b-axis directions. For the Zn-free sample, the conduction along the b-axis direction was highly metallic, which persisted up to the x=0.15 sample although the doping of Zn increased the resistivity. On the other hand, the a-axis resistivity of the Zn-free crystal exhibited a peak around 130 K, which is attributable to a switching of the dominant conduction path from the Cu-O chain site at low temperature to the CuO_2_ plane at high temperature. With Zn doping, the peak moves to lower temperature and the resistivity extrapolated to T=0 increases, indicating that Zn doping suppresses the coherent conduction across Cu-O chains.

Thermoelectric Properties of (Ca,Sr,Bi)_2_Co_2_O_5_ Whiskers 査読有り

R. Funahashi, I. Matsubara, H. Ikuta, T. Takeuchi, and U. Mizutani

Materials Transactions 42 巻頁： 956 2001年

Melt-Processed RE-Ba-Cu-O (RE=Sm, Nd) Superconductors for Quasi-Permanent Magnets 査読有り

H. Ikuta, T. Hosokawa, H. Ishihara, M. Yoshikawa, Y. Yanagi, Y. Itoh, T. Oka, and U. Mizutani

IEEE Trans. Appl. Superconduct. 11 巻頁： 3716 2001年

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（学術雑誌）

The microstructures of melt-processed NdBCO/Ag samples were investigated. A rather homogeneous distribution of Nd422 particles was found, which can be attributed to the fast growing speed of NdBCO and the large size of Nd422 particles. The dispersion of Ag depended on the content of Ag_2_O, and the phase relation of the NdBCO/Ag system is discussed. We also studied the pulsed field magnetization technique, and found that the amount of magnetic fluxes trapped by SmBCO significantly increased by sandwiching the sample with ferromagnetic yokes and repeatedly applying magnetic pulses with decreasing the amplitude.

Construction of a 2-5 T class superconducting magnetic fieldgenerator with use of an Sm123 bulk superconductor and its application to high-magnetic field demanding devices 査読有り

T. Oka, Y. Itoh, Y. Yanagi, M. Yoshikawa, H. Ikuta, and U. Mizutani

Physica C 335 巻頁： 101 2000年

Mechanical Properties of Sm-Ba-Cu-O/Ag Bulk Superconductors 査読有り

N. Sakai, A. Mase, H. Ikuta, S-J. Seo, U. Mizutani, and M. Murakami

Supercond. Sci. Technol. 13 巻頁： 770 2000年

Application of the Superconducting Permanent Magnets Driven by Static and Pulsed Magnetic Fields 査読有り

U. Mizutani, H. Ikuta, T. Hosokawa, H. Ishihara, K. Tazoe, T. Oka, Y. Itoh, Y. Yanagi, and M. Yoshikawa

Supercond. Sci. Technol. 13 巻頁： 836 2000年

Synthesis of c-axis-oriented Sm123 superconductors and their performance as superconducting permanent magnets 査読有り

U. Mizutani, A. Mase, K. Tazoe, H. Ikuta, T. Oka, Y. Itoh, Y. Yanagi, and M. Yoshikawa

Physica C 335 巻頁： 92 2000年

Preparation of bi-axially aligned YBa_2_Cu_3_O_7-d_ film on CeO_2_ buffered MgO by chemical solution deposition 査読有り

K. Yamagiwa, H. Hiei, Y. Takahashi, S. B. Kim, K. Matsumoto, H. Ikuta, U. Mizutani, and I. Hirabayashi

Physica C 334 巻頁： 301 2000年

Trapped Field Distribution on Sm-Ba-Cu-O Bulk Superconductor by Pulsed-Field Magnetization 査読有り

Y. Yanagi, Y. Itoh, M. Yoshikawa, T. Oka, T. Hosokawa, H. Ishihara, H. Ikuta, and U. Mizutani

Advances in Superconductivity 12 巻頁： 470 2000年

Synthesis of c-axis Oriented RE-Ba-Cu-O (RE=Sm and Nd) Superconductors and Performance of Superconducting Permanenet Magnets Activated by Pulsed Fields 査読有り

U. Mizutani, H. Ikuta, T. Hosokawa, H. Ishihara, T. Oka, Y. Itoh, Y. Yanagi, and M. Yoshikawa

Advances in Superconductivity 12 巻頁： 431 2000年

Preparation of NdBa_2_Cu_3_O_x_ Thin Films and Their Superconducting Properties in Magnetic Fields 査読有り

Y. Ichino, K. Matsumoto, Y. Takahashi, S. B. Kim, I. H. H. Ikuta, and U. Mizutani

Advances in Superconductivity 12 巻頁： 879 2000年

Influence of Carbon on YBa_2_Cu_3_O_6+x_ Single Crystalline Thick Film 査読有り

T. Miura, Y. Yamada, Y. Koike, H. Ikuta, I. Hirabayashi, and U. Mizutani

Advances in Superconductivity 12 巻頁： 607 2000年

Influence of Carbon and Fluorine Containing Solution on Liquid Phase Epitaxy of YBa_2_Cu_3_O_7-d_ 査読有り

Y. Yamada, T. Miura, Y. Koike, I. Hirabayashi, H. Ikuta, and U. Mizutani

Advances in Superconductivity 12 巻頁： 601 2000年

Carbon incorporated YBa_2_Cu_3_O_7-d_ crystal; growth, phase separation and enhancement of irreversibility field 査読有り

Y. Yamada, T. Miura, Y. Koike, I. Hirabayashi, H. Ikuta, and U. Mizutani

Physica C 341-348 巻頁： 603 2000年

Substitution effect on the Ferromagnetism of La_4_Ba_2_Cu_2_O_10_ 査読有り

H. Nozaki, H. Ikuta, Y. Yamada, A. Matsushita, H. Takahashi, I. Hirabayashi, and U. Mizutani

Phys. Rev. B 62 巻頁： 9555 2000年

Synthesis and superconducting properties of c-axis aligned, single-domain NdBCO/Ag, melt-processed superconductors 査読有り

H. Ikuta, T. Hosokawa, M Yoshikawa, and U. Mizutani

Supercond. Sci. Technol. 13 巻頁： 1559 2000年

Anisotropic Optical Spectra of PrBa_2_Cu_4_O_8_: Possible Tomonaga-Luttinger Liquid Response of the Quasi-One Dimensional Metallic CuO Double Chains 査読有り

K Takenaka, K Nakada, A Osuka, S Horii, H Ikuta, I Hirabayashi, S Sugai, and U Mizutani

Phys. Rev. Lett. 85 巻頁： 5428 2000年

An Oxide Single Crystal with High Thermoelectric Performance in Air 査読有り

R. Funahashi, I. Matsubara, H. Ikuta, T. Takeuchi, U. Mizutani, and S. Sodeoka

Jpn. J. Appl. Phys. 39 巻頁： L1127 2000年

Relationship between the Temperature-Dependent Specific Heat of Regenerator Materials and Performance of a Gifford-McMahon Refrigerator

T. Biwa, S. Sunahara, H. Ikuta, and U. Mizutani

Proceedings of the Sixth Joint Japanese-Sino Seminar on Cryocooler and its Applications 頁： 131 2000年

La422相の強磁性

平林泉、山田容士、野崎洋、生田博志、水谷宇一郎

固体物理 35 巻頁： 121 2000年

Pulse Field Magnetization of Melt-Processed Sm-Ba-Cu-O 査読有り

H. Ikuta, H. Ishihara, T. Hosokawa, Y. Yanagi, Y. Itoh, M. Yoshikawa, T. Oka, and U. Mizutani

Supercond. Sci. Technol. 13 巻頁： 846 2000年

Growth and anisotropic resistivity of Pr124 and Pr247 single crystals: A direct probe of metallic Cu-O double chains 査読有り

S. Horii, U. Mizutani, H. Ikuta, Y. Yamada, J. H. Ye, A. Matsushita, N. E. Hussey, H. Takagi, and I. Hirabayashi

Phys. Rev. B 61 巻頁： 6327 2000年

Thermoelectric properties of Co-based oxide single crystals with layered structure

R. Funahashi, H. Ikuta, T. Takeuchi, I. Matsubara, U. Mizutani, and S. Sodeoka

Proceedings of the 17^th^ International Korea-Japan Seminar on Ceramics 頁： 61-65 2000年

Anomalous thermal expansion behaviors in Sm-Ba-Cu-O superconductors 査読有り

M. Okaji, N. Yamada, A. Mase, H. Ikuta, and U. Mizutani

Physica C 341-348 巻頁： 1883 2000年

Synthesis of c-Axis Oriented Single-Domain Sm123 Superconductors Capable of Trapping 9 Tesla at 25 K and its Application to a Strong Magnetic Field Generator 査読有り

U. Mizutani, A. Mase, H. Ikuta, Y. Yanagi, M. Yoshikawa, Y. Itoh, and T. Oka

Materials Science and Engineering B 65 巻頁： 66 1999年

Single Crystal Growth and Magnetic Properties of (La,Nd)_4_Ba_2_Cu_2_O_10_ 査読有り

H. Nozaki, Y. Yamada, H. Ikuta, I. Hirabayashi, and U. Mizutani

Advances in Superconductivity 11 巻頁： 85 1999年

Flux Dynamics During Pulsed-Field Magnetization in R-Ba-Cu-O (R=Y, Sm) Bulk Superconductors 査読有り

Y. Yanagi, Y. Itoh, M. Yoshikawa, T. Oka, A. Mase, T. Hosokawa, H. Ikuta, and U. Mizutani

Advances in Superconductivity 11 巻頁： 717 1999年

Very Strong Magnetic Field Trapped by Melt-Processed Large Sm-Ba-Cu-O Bulk-Superconductors 査読有り

H. Ikuta, A. Mase, T. Hosokawa, Y. Yanagi, M. Yoshikawa, Y. Itoh, T. Oka, and U. Mizutani

Advances in Superconductivity 11 巻頁： 657 1999年

Growth and the Transport Property of Single Crystalline PrBa_2_Cu_4_O_8_ 査読有り

S. Horii, Y. Yamada, H. Ikuta, I. Hirabayashi, and U. Mizutani

Advances in Superconductivity 11 巻頁： 89 1999年

Very High Trapped Field in Melt-Processed Sm-Ba-Cu-O 査読有り

H. Ikuta, A. Mase, U. Mizutani, Y. Yanagi, M. Yoshikawa, Y. Itoh, and T. Oka

IEEE Trans. Appl. Superconduct. 9 巻頁： 2219 1999年

高温超伝導溶融バルク材料開発の現状

生田博志、岡徹雄、水谷宇一郎

応用物理 68 巻頁： 403 1999年

捕捉磁場マグネットの低温パルス着磁とその応用

水谷宇一郎、岡徹雄、伊藤佳孝、柳陽介、吉川雅章、生田博志

低温工学 34 巻頁： 654 1999年

Evaluation of the Refrigeration in the Gifford-McMahon-CycleRefrigerator Based on the Thermoacoustic Theory 査読有り

T. Biwa, H. Ikuta, and U. Mizutani

Jpn. J. Appl. Phys. 38 巻頁： 3763 1999年

Superconducting Properties of NdBa_2_Cu_3_O_x_ Thin Films prepared by Pulsed Laser Deposition Method 査読有り

Y. Ichino, K. Matsumoto, Y. Takahashi, S. B. Kim, H. Ikuta, I. Hirabayashi, and U. Mizutani

Advances in Superconductivity 11 巻頁： 549 1999年

高温超伝導体の強力擬似永久磁石としての応用

生田博志、岡徹雄、水谷宇一郎

日本応用磁気学会誌 23 巻頁： 885 1999年

超伝導永久磁石の開発に関する現状

水谷宇一郎、岡徹雄、伊藤佳孝、生田博志

紛体および粉末冶金 46 巻頁： 1241 1999年

Evaluation of Cu and Pb Particles with Different Sizes as Regenerator Materials in the Gifford-McMahon-Cycle Refrigerator 査読有り

T. Biwa, H. Ikuta, and U. Mizutani

Jpn. J. Appl. Phys. 37 巻頁： 5808 1998年

Preparation of c-Axis Oriented Nd-Ba-Cu-O Melt-Textured Bulk With Ag Addition 査読有り

S. Ikeda, M. Yoshikawa, Y. Yanagi, Y. Itoh, T. Oka, H. Ikuta, and U. Mizutani

Advances in Superconductivity 10 巻頁： 705 1998年

Preparation and Superconducting Properties of Melt-Processed YBCO Bulk by Controlling Oxygen Partial Pressure 査読有り

S. Iwata, S. Nagaya, H. Ikuta, and U. Mizutani

Advances in Superconductivity 10 巻頁： 657 1998年

Flux Pinning of NdBa_2_Cu_3_O_7-d_ Superconducting Film by Laser Ablation Method 査読有り

K. Matsumoto, H. Nakaji, Y. Ichino, T. Takagi, H. Ikuta, and I. Hirabayashi

Advances in Superconductivity 10 巻頁： 493 1998年

Flux Motion during Pulsed-Field Magnetization in Melt-Processed YBCO 査読有り

A. Terasaki, Y. Yanagi, Y. Itoh, M. Yoshikawa, T. Oka, H. Ikuta, and U. Mizutani

Advances in Superconductivity 10 巻頁： 945 1998年

Preparation of Large c-Axis Oriented Melt-Processed Sm-Ba-Cu-O and Their Superconducting Properties 査読有り

A. Mase, S. Ikeda, M. Yoshikawa, Y. Yanagi, Y. Itoh, T. Oka, H. Ikuta, and U. Mizutani

Advances in Superconductivity 10 巻頁： 737 1998年

Melt-Processed Sm-Ba-Cu-O Superconductors Trapping Strong Magnetic Field 査読有り

H. Ikuta, A. Mase, Y. Yanagi, M. Yoshikawa, Y. Itoh, T. Oka, and U. Mizutani

Supercond. Sci. Technol. 11 巻頁： 1345 1998年

Melt-Processing of Ag-added LRE-Ba-Cu-O (LRE=Nd, Sm) 査読有り

H. Ikuta, S. Ikeda, A. Mase, M. Yoshikawa, Y. Yanagi, Y. Itoh, T. Oka, and U. Mizutani

Appl. Superconduct. 6 巻頁： 109 1998年

高温超電導バルク材料

生田博志、水谷宇一郎

電気学会誌 118 巻頁： 759 1998年

Synthesis and Superconducting Properties of (Y_1-x_Pr_x_)Ba_2_Cu_4_O_8_ and (Y_1-x_Pr_x_)_2_Ba_4_Cu_7_O_15-y_ Compounds 査読有り

S. Horii, Y. Yamada, H. Ikuta, N. Yamada, Y. Kodama, S. Katano, Y. Funahashi, S. Morii, A. Matsushita, T. Matsumoto, I. Hirabayashi, and U. Mizutani

Physica C 302 巻頁： 10 1998年

Pulsed-field magnetization applied to high-T_c_superconductors 査読有り

U. Mizutani, T. Oka, Y. Itoh, Y. Yanagi, M. Yoshikawa, and H. Ikuta

Appl. Superconduct. 6 巻頁： 235 1998年

Pulsed Field Magnetization of Y-Ba-Cu-O Superconducting Bulk Magnet Cooled by Refrigerator 査読有り

Y. Yanagi, Y. Itoh, M. Yoshikawa, T. Oka, A. Terasaki, H. Ikuta, and U. Mizutani

Advances in Superconductivity 10 巻頁： 941 1998年

Universal Scaling Laws in the H-T Phase Diagram of the High Temperature Superconductors 査読有り

K. Kitazawa, J. Shimoyama, H. Ikuta, S. Watauchi, M. Okuya, T. Sasagawa, and K. Kishio

Physica C 282-287 巻頁： 335 1997年

Experimental study on the entropy flow through the regenerator of GM refrigerator

T. Biwa, Y. Hoshino, H. Ikuta, Y. Ohashi, T. Inoue, and U. Mizutani

Proceedings of the Fifth Japanese-Sino Joint Seminar on Cryocooler and its Applications 頁： 35 1997年

高温超伝導体の磁束格子融解と磁気相図

生田博志、下山淳一、岸尾光二

固体物理 32 巻頁： 351 1997年

The Vortex Phase Diagram of Bi_2_Sr_2_CaCu_2_O_y_ Investigated by the Resistivity Measurements 査読有り

H. Ikuta, S. Watauchi, Y. Nakayama, J. Shimoyama, K. Kitazawa, and K. Kishio

Physica C 282-287 巻頁： 2015 1997年

The Universal Magnetic Phase Diagram of Bi2212 under H//c 査読有り

J. Shimoyama, K. Kishio, H. Ikuta, S. Watauchi, M. Okuya, and K. Kitazawa

Physica C 282-287 巻頁： 2055 1997年

The Second Peak Effect Observed in Sr-Overdoped (La_1-x_Sr_x_)_2_CuO_4-d_ Single Crystals with Various Oxygen Deficiency d 査読有り

M. Okuya, T. Sasagawa, H. Ikuta, J. Shimoyama, K. Kishio, and K. Kitazawa

Physica C 282-287 巻頁： 2239 1997年

Thermoelectric Power of (Hg, Re)-based Superconductors 査読有り

K. Komori, H. Sumioka, A. Yoshikawa, J. Shimoyama, H. Ikuta, and K. Kishio

Physica C 282-287 巻頁： 1269 1997年

Anisotropy as the Determining Factor of Irreversibility Field and its Control by Chemical Doping

K. Kitazawa, J. Shimoyama, H. Ikuta, and K. Kishio

Proceedings of the 10th Anniversary HTS Workshop on Physics, Materials and Applications 頁： 151 1996年

Observation of resistivity drops and the vortex phase diagram in Bi_2_Sr_2_CaCu_2_O_y_ 査読有り

S. Watauchi, H. Ikuta, J. Shimoyama, and K. Kishio

Physica C 259 巻頁： 373 1996年

Effect of Carrier Doping on Irreversibility and Melting Lines in Bi2212 Single Crystals

K. Kishio, J. Shimoyama, S. Watauchi, and H. Ikuta

Proceedings of the 8th International Workshop on Critical Currents in Superconductors 頁： 245 1996年

Vortex Phase Transition in Bi_2_Sr_2_CaCu_2_O_y_ Single Crystal

H. Ikuta, S. Watauchi, J. Shimoyama, K. Kitazawa, and K. Kishio

Proceedings of the 10th Anniversary HTS Workshop on Physics, Materials and Applications 頁： 407 1996年

Effect of Gold Doping on the superconducting critical temperature and transition width in single-crystal YBa_2_Cu_3_O_7-d_ (YBCO) 査読有り国際共著

H. Ikuta and D. M. Ginsberg

J. Superconductivity 9 巻頁： 267 1996年

Resistivity Measurements and the Vortex Phase Diagram of Bi_2_Sr_2_CaCu_2_O_y_ 査読有り

H. Ikuta, S. Watauchi, J. Shimoyama, K. Kitazawa, and K. Kishio

J. Low Temp. Phys. 105 巻頁： 1189 1996年

Magnetostriction and Flux Creep in High-T_c_ Superconductor Single Crystals 査読有り

H. Ikuta, N. Hirota, L. K. Heill, K. Kishio, and K. Kitazawa

Physica B 194-196 巻頁： 1847 1994年

Magnetostriction of HTSC Single Crystals 査読有り

N. Hirota, H. Ikuta, L. K. Heill, T. Yasunaka, K. Kishio, and K. Kitazawa

J. Superconductivity 7 巻頁： 283 1994年

Magnetostriction relaxation in high-T_c_ superconductors 査読有り

L. K. Heill, H. Ikuta, N. Hirota, K. Kishio, and K. Kitazawa

Physica C 235-240 巻頁： 2925 1994年

Magnetostriction in High-T_c_ Cuprate Single Crystals 査読有り

H. Ikuta, N. Hirota, K. Kishio, and K. Kitazawa

Physica C 235-240 巻頁： 237 1994年

Doping State and Transport Anisotropy in Bi2212 Single Crystals 査読有り

Y. Kotaka, T. Kimura, H. Ikuta, J. Shimoyama, K. Kitazawa, K. Yamafuji, K. Kishio, and D. Pooke

Physica C 235-240 巻頁： 1529 1994年

Spatial variations of the local density of states modified byCDWs in 1T-TaS_2-x_Se_x_ 査読有り

T. Hasegawa, W. Yamaguchi, J.-J. Kim, W. Wei, M. Nantoh, H. Ikuta, K. Kitazawa, A. Manivannan, A. Fujishima, and K. Uchinokura

Surface Science 314 巻頁： 269 1994年

Critical state models for flux-pinning-induced magnetostriction in type-II superconductors 査読有り

H. Ikuta, K. Kishio, and K. Kitazawa

J. Appl. Phys. 76 巻頁： 4776 1994年

Giant Magnetostriction in Bi_2_Sr_2_CaCu_2_O_8_ Single Crystal in the Superconducting State and its Mechanism 査読有り

H. Ikuta, N. Hirota, Y. Nakayama, K. Kishio, and K. Kitazawa

Phys. Rev. Lett. 70 巻頁： 2166 1993年

Giant Magnetostriction of Cuprates in Superconducting State 査読有り

H. Ikuta, Y. Nakayama, N. Hirota, K. Kishio, and K. Kitazawa

Appl. Superconductivity 1 巻頁： 635 1993年

Superconducting Gap Observed by the Atomic-Site TunnelingSpectroscopy on YBCO and BSCCO 査読有り

K. Kitazawa, M. Nantoh, S. Heike, A. Takagi, H. Ikuta, and T. Hasegawa

Physica C 209 巻頁： 23 1993年

Scanning Tunneling Spectroscopy on High T_c_ Superconductors 査読有り

T. Hasegawa, M. Nantoh, S. Heike, A. Takagi, H. Ikuta, M. Kawasaki, H. Koinuma, and K. Kitazawa

Physica Scripta. T49 巻頁： 215 1993年

Atom-Site Specified Tunneling Spectroscopy on Bi_2_Sr_2_CaCu_2_O_y_, YBa_2_Cu_3_O_7_ and TaS_2_-TaSe_2_ 査読有り

M. Nantoh, W. Yamaguchi, A. Takagi, H. Ikuta, T. Hasegawa, and K. Kitazawa

Proceedings of the Beijing International Conference High-Temperature Superconductivity (BHTSC '92) 頁： 54 1993年

Atom-Site Specified Tunneling Spectroscopy on Oxide Superconductors and Charge Density Wave Materials 査読有り

K. Kitazawa, T. Hasegawa, H. Ikuta, M. Nantoh, and W. Wei

Physica Scripta 42 巻頁： 89 1992年

Giant Magnetostriction in Oxide Superconductors and its Relationship with Pinning

H. Ikuta, N. Hirota, K. Kishio, and K. Kitazawa

Proceedings of the Fifth U.S.-Japan Workshop on High T_c_ Superconductors 頁： 217 1992年

Giant Magnetostriction in Oxide Superconductors in the Superconducting State

K. Kitazawa, H. Ikuta, N. Hirota, Y. Nakayama, and K. Kishio

Proceedings of the International Conference of Giant Magnetostrictive Materials 頁： 15 1992年

Studies on Anisotropy of Oxide Superconductors by STM/STS and Magnetization Measurements 査読有り

K. Kitazawa, K. Kishio, T. Hasegawa, Y. Nakayama, and H. Ikuta

Japanese Journal of Applied Physics Series 7 Mechanism of Superconductivity (ed. Y. Muto) 頁： 253-259 1992年

Atomic Site Tunneling Spectroscopy on Oxide Superconductors 査読有り

T. Hasegawa, M. Nantoh, A. Takagi, H. Ikuta, M. Kawasaki, H. Koinuma and K. Kitazawa

J. Phys. Chem. Solids 53 巻頁： 1643 1992年

Anisotropic Electronic Structures of High T_c_ Superconductors Investigated by STM/STS

T. Hasegawa, H. Ikuta, M. Nantoh, and K. Kitazawa

Proceedings of 1992 TcSUH HTS Workshop on Materials, Bulk Processing & Applications 1992年

STM/STS Study of Single Crystalline Bi_2_Sr_2_CaCu_2_O_y_ (2): Electronic Nature of the BiO Layer as a Function of Oxygen Content 査読有り

W. Wei, M. Nantoh, H. Ikuta, T. Hasegawa, and K. Kitazawa

Physica C 185-189 巻頁： 863 1991年

Cryogenic Scanning Tunneling Spectroscopy on Oxide Superconductors 査読有り

T. Hasegawa, M. Nantoh, H. Ikuta, and K. Kitazawa

Physica C 185-189 巻頁： 1743 1991年

STM/STS Study of Single Crystalline Bi_2_Sr_2_CaCu_2_O_y_ (1): Superconducting Gap and Barrier Width Dependence of Tunneling Spectrum 査読有り

M. Nantoh, S. Heike, H. Ikuta, T. Hasegawa, and K. Kitazawa

Physica C 185-189 巻頁： 861 1991年

高温超伝導体の物性は従来の超伝導体と異なるのか

北沢宏一、生田博志

現代化学 ( 243 ) 頁： 58 1991年

酸化物超伝導体のトンネルスペクトロスコピー ---STMを中心に最近の研究から---

長谷川哲也、南任真史、生田博志

固体物理 26 巻頁： 425 1991年

Tunneling Spectroscopy of the 80 K Superconducting Phase of the Bi-Sr-Ca-Cu-O System 査読有り

H. Ikuta, A. Maeda, K. Uchinokura, and S. Tanaka

Jpn. J. Appl. Phys. 27 巻頁： L1038 1988年

Investigation of the 80-K Superconducting Phase of the Bi-Sr-Ca-Cu-O System by Means of the Tunneling Spectroscopy

H. Ikuta, A. Maeda, K. Uchinokura, and S. Tanaka

47 巻頁： 89 1988年

Physical Properties of an 80 K-Superconductor: Bi-Sr-Ca-Cu-OCeramics 査読有り

A. Maeda, T. Yabe, H. Ikuta, Y. Nakayama, T. Wada, S. Okuda, T. Itoh M. Izumi, K. Uchinokura, S. Uchida, and S. Tanaka

Jpn. J. Appl. Phys. 27 巻頁： L661 1988年

Tunneling Spectroscopy of Quasi-One-Dimensional Material 査読有り

H. Ikuta, A. Maeda, K. Uchinokura, and S. Tanaka

Jpn. J. Appl. Phys. 26 巻 ( Suppl. 26-3 ) 頁： 621 1987年

Superconductivity of High-Tc Orthorhombic LaBa_2_Cu_3_O_y_ 査読有り

S. Tanaka, A. Meada, T. Yabe, M. Izumi, K. Uchinokura, and H. Ikuta

Rev. Solid State Sci. 1 巻頁： 149 1987年

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