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Synchrotron Radiation Research

Synchrotron Radiation Research　|　Magnetism Research Group

Update：2024年4月1日更新
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Synchrotron Radiation Research Center

Magnetism Research Group

Group Leader　INAMI Toshiya

Our research interest focuses on the development of advanced x-ray spectroscopies and related theoretical calculations on magetic properties of materials. By utilizing synchrotron radiation x-rays, we develop magnetic microscopy enabling to observe magnetic domains inside magnets, and novel methods of Moessbauer spectroscopy. In addition, we conduct related theoretical studies on the magnetism in strongly correlated electron systems. 

Group member

INAMI Toshiya Group Leader
MITSUI Takaya Senior Principal Researcher
NOMURA Takuji Senior Principal Researcher (Visiting Associate Professor, University of Hyogo)
FUJIWARA Kosuke Researcher
KOBAYASHI Hiroki QST Research Assistant (DC2, Graduate School of Science, University of Hyogo)
UEKI Aimi Trainee (B4, School of Science, University of Hyogo)
SAKAI Toru Visiting Researcher (Professor, University of Hyogo)
SETO Makoto Visiting Researcher（Professor, The Institute for Integrated Radiation and Nuclear Science, Kyoto University）

Research Summaries

Publications

  1.  Toshiya Inami, Kento Sugawara, Takahiro Nakada, Yui Sakaguchi, Shin Takahashi: Observation of buried magnetic domains in grain-oriented electrical steel, IEEE Transactions on Magnetics, 59(3), 6000406, 2023-03, DOI:10.1109/TMAG.2023.3237939

  2. Masuda Ryo, Hirao Naoshisa, Fujiwara Kosuke, Mitsui Takaya, Fujihara Taku, Tajima Hiroyuki, Kurokuzu Masayuki, Kitao Shinji , Seto Makoto: Energy domain Synchrotron-Radiation-Based Mössbauer Spectroscopy of EuH2 under a Few GPa pressure, Hyperfine Interactions, 244, 5, 2023-01, DOI:https://doi.org/10.1007/s10751-022-01815-0

  3. Kobayashi Hiroki, Koide Akihiro, Nomura Takuji, Inami Toshiya: Comparative theoretical study of x-ray magnetic circularly polarized emission from ferromagnetic Fe, Co and Ni, EPL, 140(3), 36002, 2022-11, DOI:10.1209/0295-5075/ac9d5f

  4. Hirofumi Suto, Tomoya Nakatani, Yohei Kota, Asam Nagarjuna, Hitoshi Iwasaki, Kenta Amemiya, Takaya Mitsui, Seiji Sakai, Songtian Li, Yohei Kota, Yuya Sakuraba: Study on FeCr thin film for a spintronic material with negative spin polarization, Journal of Magnetism and Magnetic Materials, 557, 169474-1 - 169474-9, 2022-09, DOI:10.1016/j.jmmm.2022.169474

  5. Izumi Mashino, Motohiko Murakami, Shinji Kitao, Takaya Mitsui, Ryo Masuda, Makoto Seto: Acoustic wave velocities of ferrous-bearing MgSiO3 glass up to 158 GPa with 2 implications for dense silicate melts at the base of the Earth’s mantle, Geophysical Research Letters, 49(19), e2022GL098279, 2022-06, DOI:10.1029/2022GL098279

  6. Mitsui Takaya, Ryo Masuda, Shinji Kitao, Yasuhiro Kobayashi, Seto Makoto: Rayleigh Scattering of Synchrotron Mössbauer Radiation using a Variable Bandwidth Nuclear Bragg Monochromator, Journal of the Physical Society of Japan, 91, 064001, 2022-04, DOI:10.7566/JPSJ.91.064001

  7. Mitsui Takaya, Fujiwara Kosuke, Yasuhiko Imai, Yoshitaka Yoda: Dynamical effects on thermal diffuse scattering in Si 111 Bragg reflection, Journal of the Physical Society of Japan, 2022-03, DOI:10.7566/JPSJ.91.035002

  8. Ryo Masuda, Shinji Kitao, Hiroyuki Tajima, Hiroki Taniguchi, Mitsui Takaya, Fujiwara Kosuke, Yoshitaka Yoda, Daisuke Ishikawa, Alfred. Q. R. Baron, Takefumi Yoshida, Tetsu Sato, Hisao Kobayashi, Seto Makoto: 161Dy Synchrotron-Radiation-Based Mössbauer Absorption Spectroscopy, Hyperfine Interactions, 243, 17, 2022-03, DOI:10.1007/s10751-022-01802-5

  9. Satoshi Murase, Yumi Yoshikawa, Fujiwara Kosuke, Yukimasa Fukada, Takeshi Teranishi, Jun Kano, Tatsuo Fujii, Yasuhiro Inada, Misaki Katayama, Kenji Yoshii, Takuya Tsujii, Daiju Matsumura, Naoshi Ikeda: Valence Control of Charge and Orbital Frustrated System YbFe2O4 with Electrochemical Li+ intercalation, Journal of Physics and Chemistry of Solids, 162, 110468, 2022-03, DOI:10.1016/j.jpcs.2021.110468

  10. D. Ogawa, T. Fukazawa, Li Songtian, Sakai Seiji, Mitsui Takaya, Ueno Tetsuro, T. Miyake, S. Okamoto, S. Hirosawa, Yukiko Takahashi: Temperature dependence of site-resolved Fe magnetic moments in ThMn12-type Sm(Fe1−xCox)12 compounds studied via synchrotron Mössbauer spectroscopy, Journal of Magnetism and Magnetic Materials, 552, 169188, 2022-02, DOI:10.1016/j.jmmm.2022.169188

  11. Jun Okabayashi, Li Songtian, Sakai Seiji , Yasuhiro Kobayashi , Fujiwara Kosuke , Mitsui Takaya , Seiji Mitani: Mössbauer spectroscopy with polarized synchrotron beams at Fe/Au (111) interface Hyperfine Interactions, 242, 59, 2021-12, DOI:10.1007/s10751-021-01788-6

  12. Mitsui Takaya, Sakai Seiji , Li Songtian, Ueno Tetsuro, Watanuki Tetsu, Yasuhiro Kobayashi, Ryo Masuda, Seto Makoto, Hisazumi Akai: Direct observation of magnetic Friedel oscillation at Fe(001) surface, Hyperfine Interactions, 242, 37, 2021-11, DOI:10.1007/s10751-021-01772-0

  13. Nakamura Shin, Mitsui Takaya, Kurokuzu Masayuki, Shimomura Susumu: Pure Nuclear Bragg Reflection due to Combined Magnetic and Quadrupole Interaction in Fe3O4, Journal of the Physical Society of Japan, 90, 104713, 2021-09, DOI:10.7566/JPSJ.90.104713

  14. M. Tsukagoshi, T. Matsumura, S. Michimura , Toshiya Inami , S. Ohara: Competition between helimagnetic and ferroquadrupolar orderings in a monoaxial chiral magnet DyNi3Ga9 studied by resonant x-ray diffraction, Physical Review B, 105(1), 014428-1 - 014428-12, 2021-11, DOI:10.1103/PhysRevB.105.014428

  15. Koide Akihiro, Nomura Takuji, Inami Toshiya: Sum rules of L-edge x-ray magnetic circularly polarized emission for 3d transition metals　Physical Review B, 104(9), 094419, 2021-09, DOI:10.1103/PhysRevB.104.094419

  16. Sugawara Kento, Inami Toshiya , Takahiro Nakada , Yui Sakaguchi , Shin Takahashi: Bulk-sensitive magnetic microscope utilizing x-ray magnetic circularly polarized emission, Journal of Applied Physics, 130(11), 113901, 2021-09, DOI:10.1063/5.0058201

  17. Hiroko Yokota, Yu Kobori, Shunsuke Jitsukawa, Sakai Seiji, Seiji Sakai, Yukiharu Takeda, Mitsui Takaya, Yasuhiro Kobayashi, Shinji Kitao: Element-specific magnetic hysteresis loops observed in hexagonal ErFeO3 thin films, Materials Research Express, 8(8), 086402, 2021-08, DOI:10.1088/2053-1591/ac1aa9

  18. Fujiwara Kosuke, Mitsui Takaya, Aoyagi Yumito, Yoda Yoshitaka, Ikeda Naoshi: Quantum Interference of Totally Reflected Mössbauer γ-Rays From a 57Fe Monolayer Embedded in a Thin Film, Journal of the Physical Society of Japan, 90(8), 084705, 2021-07, DOI:10.7566/JPSJ.90.084705

  19. Hamada Maki, Kamada Seiji, Ohtani Eiji, Sakamaki Tatsuya, Mitsui Takaya, Masuda Ryo, Hirao Naohisa, Ohishi Yasuo, Akasaka Masahide: Synchrotron Mössbauer spectroscopic and x-ray diffraction study of ferropericlase in the high-pressure range of the lower mantle region, Physical Review B, 103(17), 174108, 2021-05, DOI:10.1103/PhysRevB.103.174108

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