Faculty Profiles - OHTSUKA, Masahiro

Papers - OHTSUKA, Masahiro

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Dopant site occupancies and iron valence states in SrZn_xFe_18−xO₂₇ W-type hexaferrites using site-selective X-ray/electron spectroscopy Reviewed

Masahiro Ohtsuka, Yoshihiro Anan, Shunsuke Muto

Journal of Alloys and Compounds Vol. 1005 page： 176028 2024.11

Automating ALCHEMI at the nano-scale using software compatible with PC-controlled transmission electron microscopy Reviewed International journal

Vol. 55 page： 551 - 557 2022.6

ReciPro: free and open-source multipurpose crystallographic software integrating a crystal model database and viewer, diffraction and microscopy simulators, and diffraction data analysis tools Reviewed International journal

Seto Yusuke, Ohtsuka Masahiro

JOURNAL OF APPLIED CRYSTALLOGRAPHY Vol. 55 page： 397 - 410 2022.4

2D-HARECXS analysis of dopant and oxygen vacancy sites in Al-doped yttrium titanate Reviewed International journal

M. Ohtsuka, K. Oda, M. Tanaka, S. Kitaoka, and S. Muto

Journal of the American Ceramic Society Vol. 104 ( 7 ) page： 3760 - 3769 2021.7

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis Reviewed International journal

Masahiro Ohtsuka, Shunsuke Muto

Journal of Visualized Experiments Vol. e62015 ( 171 ) 2021.5

Cation mixing in LiNi_0.8Co_0.15Al_0.05O₂ positive electrode material studied using high angular resolution electron channeling X-ray spectroscopy Reviewed International journal

Yamamoto Yu, Ohtsuka Masahiro, Azuma Yosuke, Takahashi Teruo, Muto Shunsuke

JOURNAL OF POWER SOURCES Vol. 401 page： 263 - 270 2018.10

High-precision quantitative atomic-site-analysis of functional dopants in crystalline materials by electron-channelling-enhanced microanalysis Invited Reviewed International journal

Muto Shunsuke, Ohtsuka Masahiro

PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS Vol. 63 ( 2 ) page： 40 - 61 2017.6

Efficient data sampling scheme to reduce acquisition time in statistical ALCHEMI Reviewed

Ishizuka, A; Ohtsuka, M; Muto, S

MICROSCOPY 2025.2

Dopant site analysis of heavily Si-doped GaAs using a combination of electron microscopy and synchrotron radiation Reviewed

Saito, G; Ishizuka, A; Ohtsuka, M; Ito, S; Okajima, T; Muto, S

JOURNAL OF APPLIED PHYSICS Vol. 137 ( 2 ) 2025.1

Improved dopant fraction variance estimation in statistical ALCHEMI based on correct error propagation rule Reviewed International journal

Ishizuka, A; Ohtsuka, M; Muto, S

MICROSCOPY 2024.11

Cell structure development during cyclic deformation of near-[001] and near-[011] copper single crystals Reviewed

Bohan Wang, Haomeng Shi, Tomotaka Miyazawa, Masahiro Ohtsuka, Shunsuke Muto, Shigeo Arai, Toshiyuki Fujii

Materials Science and Engineering: A Vol. 916 page： 147357 2024.11

Formation mechanism of dislocation network of cell structure in cyclically deformed near-[111] copper single crystals Reviewed International journal

Wang, BH; Umeda, Y; Miyazawa, T; Ohtsuka, M; Muto, S; Arai, S; Fujii, T

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING Vol. 879 2023.7

Extension of focal depth by electron quasi-Bessel beam in atomic-resolution scanning transmission electron microscopy Reviewed International journal

Ishida, T; Owaki, T; Ohtsuka, M; Kuwahara, M; Saitoh, K; Kawasaki, T

APPLIED PHYSICS EXPRESS Vol. 15 ( 11 ) 2022.11

A study on the relationship of magnetic moments orientation in L1<sub>0</sub>FePt network nanostructured film by electron energy-loss magnetic chiral dichroism using semi-core excitation spectra Reviewed International coauthorship International journal

Makino, H; Rusz, J; Wang, J; Turenne, D; Ohtsuka, M; Takahashi, YK; Dürr, HA; Muto, S

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS Vol. 558 2022.9

Structural and chemical modifications of oxides and OH generation by space weathering: Electron microscopic/spectroscopic study of hydrogen-ion-irradiated Al₂O₃ Reviewed International journal

Igami Yohei, Muto Shunsuke, Takigawa Aki, Ohtsuka Masahiro, Miyake Akira, Suzuki Kohtaku, Yasuda Keisuke, Tsuchiyama Akira

GEOCHIMICA ET COSMOCHIMICA ACTA Vol. 315 page： 61 - 72 2021.12

Core-Shell Double Doping of Zn and Ca on β-Ga₂O₃ Photocatalysts for Remarkable Water Splitting Reviewed International journal

A. Yamakata, J. J. M. Vequizo, T. Ogawa, K. Kato, S. Tsuboi, N. Furutani, M. Ohtsuka, S. Muto, A. Kuwabara, Y. Sakata

ACS Catalysis Vol. 11 ( 4 ) page： 1911 - 1919 2021.2

Formation of ultra-thin Ge_1-xSn_x/Ge_1-x-ySi_xSn_y quantum heterostructures and their electrical properties for realizing resonant tunneling diode Reviewed International journal

Suwito Galih Ramadana, Fukuda Masahiro, Suprayoga Edi, Ohtsuka Masahiro, Hasdeo Eddwi Hesky, Nugraha Ahmad Ridwan Tresna, Sakashita Mitsuo, Shibayama Shigehisa, Nakatsuka Osamu

Applied Physics Letters Vol. 117 ( 23 ) 2020.12

Measurement of nanoscale local stress distribution in phase-separated glass using scanning transmission electron microscopy-cathodoluminescence Reviewed International journal

Yamada Taiki, Ohtsuka Masahiro, Takahashi Yoshimasa, Yoshino Haruhiko, Amma Shin-ichi, Muto Shunsuke

MATERIALIA Vol. 9 2020.3

電子チャネリング効果を利用した結晶材料分析法の現状 Invited Reviewed

大塚真弘, 武藤俊介

まてりあ Vol. 58 ( 2 ) page： 73 - 76 2019.2

Proposal for Measuring Magnetism with Patterned Apertures in a Transmission Electron Microscope Reviewed International coauthorship International journal

Negi Devendra, Spiegelberg Jakob, Muto Shunsuke, Thersleff Thomas, Ohtsuka Masahiro, Schonstrom Linus, Tatsumi Kazuyoshi, Rusz Jan

PHYSICAL REVIEW LETTERS Vol. 122 ( 3 ) 2019.1

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