Synchrotron Radiation Imaging Group

Center for Basic Research on Materials, National Institute for Materials Science

Outline

The group aims to elucidate the origin of the properties and emergent properties of spintronics devices and magnetic quantum device materials through the elucidation of their magnetic structures and electronic states. In particular, we promote the development of instruments that combine the pulse characteristics of synchrotron radiation with high spatial resolution, and pioneer observation methods for nanoscale magnetic structure dynamics. We are conducting materials science research by utilizing synchrotron radiation measurement techniques in various aspects, such as visualization techniques for antiferromagnetic materials and electronic structure observation by resonant X-ray scattering. We are also developing innovative measurement informatics analysis techniques to push the limits of measurement.
140x140
Advanced Synchrotron Radiation Measurement
140x140
Magnetic Skyrmion
140x140
Altermagnetism

Member

YAMASAKI, Yuichi

Group Leadear, Center for Basic Research on Materials, National Institute for Materials Science (NIMS)
Professor, Tohoku University (Cross appointment)
Google Scholar / Web of Science

ISHII, Yuta

Senior Researcher

Sasabe, Norimasa

NIMS Postdoc Researcher

NOMURA, Hikaru

Visintig researcher
Associated Professor, Tohoku University

KOIZUMI, Hiroki

Visiting researcher
Assistant Professor, Tohoku University

Goto, Emi

Assistant

Publication

2025

  1. Masaichiro Mizumaki, Norimasa Sasabe, Takayuki Uozumi, Rikuto Oiwa, Hiroaki Kusunose
    "Detection of ferroic octupole ordering in d-wave altermagnetic rutile-type compounds"
    Submitted (2025)

  2. N. Sasabe, Y. Ishii, and Y. Yamasaki,
    "X-ray magnetic circular dichroism originating from the Tz term in collinear altermagnets under trigonal crystal field",
    Accepted by Physical Review B (2025); arXiv:2508.17801

  3. Tomomi Furuhashi, Keita Nagasawa, Yuichi Yamasaki, Hironori Nakao, Yusuke Kozuka, Yoshihiro Tsujimoto, Kazunari Yamaura, and Jun Fujioka
    "Spin-Fluctuation Induced Anomalous Hall Effect in Distorted Kagome Antiferromagnet DyAgGe"
    Accepted by Physical Review B (2025)

  4. Y. Ishii, Y. Kozuka, S. Kawachi, T. Ito, Y. Wakabayashi, H. Nakao, T. -h. Arima, and Y. Yamasaki,
    “Development of soft X-ray microscope with a four-pole magnet",
    Accepted by STAM-Method (2025)

  5. K. Ichiyanagi, T. Sasaki, Y. Yokoyama, and Y. Yamasaki,
    "Enhanced X-ray structural analysis using Total Variation denoising of X-ray diffraction images",
    Accepted by Acta Crystallographica Section A; 10.1107/S2053273325009672 (2025)

  6. Y. Yamasaki, N. Sasabe, Y. Ishii, Y. Sekiguchi, A. Sumiyoshiya, Y. Tanimoto, Y. Kotani, T. Nakamura, and H. Nomura
    "High-Throughput Mapping of Magnetic Properties via the on-the-fly XMCD spectroscopy in a Combinatorial Fe-Co-Ni Film"
    Science and Technology of Advanced Materials (STAM) Method 5, 2544528 (2025); 10.1080/27660400.2025.2544528; arXiv:2506.20958

  7. Y. Kobayashi, H. Takahashi, S. Kitou, A. Nakano, H.Sagayama, Y. Yamasaki, S. Ishiwata,
    "A rutile-based homologous series Na(PtO2)2n+1 discovered by computationally assisted high-pressure synthesis",
    Inorganic Chemistry 64, 33, 16711–16720 (2025); 10.1021/acs.inorgchem.5c02074 SPring-8のプレスリリース

  8. Y. Yamasaki, Y. Ishii, and N. Sasabe
    "Sum rules for x-ray circular and linear dichroism based on complete magnetic multipole basis"
    Science and Technology of Advanced Materials (STAM) 26 (1), 2513217 (2025); 10.1080/14686996.2025.2513217;
    arXiv2504.16461; 2025/6/30

  9. H. Nakao, Y. Sawata, M. Mizumaki, Y. Yamasaki, H. Kuwahara and T. Saitoh,
    "Phase-separated state in the bilayer manganite investigated by scanning-type resonant soft X-ray scattering",
    J. Phys.: Conf. Ser. 3010 012159 (2025); 10.1088/1742-6596/3010/1/012159

  10. H. Koizumi and Y. Yamasaki
    "Altermagnetism in Epitaxial NiCo2O4 Thin Films via Higher-Order Magnetic Anisotropy" (Review)
    J. Phys. D: Appl. Phys. 58 253002 (2025); 10.1088/1361-6463/addfe2; 2025/6/17

  11. H. Tamatsukuri, T. Uchihara, S. Mitsuda, Y. Ishii, H. Nakao, K. Takehana, Y. Imanaka,
    "Magnetoferroelectric phase transition induced by latent spin-lattice coupling in the geometrically frustrated magnet CuFe0.95Al0.05O2"
    Physical Review B. 111 [13] 134403 (2025); 10.1103/physrevb.111.134403, 2025/4/1

  12. Shohei Miyagawa, Yuta Ishii, Masato Anada, Kazuki Nagai, Miho Kitamura, Hiroshi Kumigashira, Yusuke Wakabayashi,
    "Non-destructive measurement of the charge transfer across LaMnO3/SrTiO3 interfaces",
    Journal of Applied Physics. 137 [12] 125303 (2025) 10.1063/5.0258175, 2025/3/24

  13. H. Takahashi, M. Ito, J. Fujioka, M. Ochi, S. Sakai, R. Arita, H. Sagayama, Yuichi Yamasaki, and S. Ishiwata,
    "Mass enhancement and metal-nonmetal transition driven by d-f hybridization in perovskite La1−xPrxCuO3",
    Phys. Rev. B 111, 085153 (2025), 10.1103/PhysRevB.111.085153, 2025/2/28

  14. M. Onose, H. Takahashi, H. Sagayama, Yuichi Yamasaki, and S. Ishiwata,
    "Exploration of metastable A-site-ordered perovskites (Ca,Ba)FeO3-δ by computationally-guided multi-step synthesis",
    J. Am. Chem. Soc. 147, 8260 (2025); 10.1021/jacs.4c15392, 2025/2/28

  15. Hong Pang, Cédric Bourgès, Naohito Tsujii, Jha Rajveer, Naoyuki Kawamoto, Fumihiko Ichihara, Takahiro Baba, Tetsuya Baba, Naoki Sato, Yuichi Yamasaki, and Takao Mori,
    "Zinc Stabilized Cation Ordered Chalcopyrite Thin Film for Enhanced Thermoelectric Power Generation Near Room Temperature",
    ACS Materials Letters. (2025) 715-723; 10.1021/acsmaterialslett.4c01898, 2025/01/25


2024

  1. Satoshi Sasaki, Daichi Oka, Daisuke Shiga, Ryunosuke Takahashi, Suguru Nakata, Koichi Harata, Yuichi Yamasaki, Miho Kitamura, Hironori Nakao, Hiroki Wadati, Hiroshi Kumigashira, Tomoteru Fukumura,
    "Rocksalt-type heavy rare earth monoxides TbO, DyO, and ErO exhibiting metallic electronic states and ferromagnetism",
    Dalton Transactions. 54 [4] (2025) 1521-1527; 10.1039/d4dt03214d, 2024/12/9

  2. “Microscopic evaluation of spin and orbital moment in ferromagnetic resonance”,
    Yuta Ishii, Yuichi Yamasaki, Yusuke Kozuka. Jana Lustikova, Yoichi Nii, Yoshinori Onose, Yuichi Yokoyama, Masaichiro Mizumaki, Jun-ichi Adachi. Hironori Nakao, Taka-hisa Arima, Yusuke Wakabayashi,
    Scientific Reports 14, 15504 (2024); 10.1038/s41598-024-66139-1
    3.