專題演講 Seminar

Title

Neutron scattering of modern magnetic systems: Spintronics and 2D magnets

Speaker

社本真一博士 (日本総合科学研究機構)

Dr. Shin-ichi Shamoto (Research Center for Neutron Science and Technology, Comprehensive Research Organization for Science and Society, Tokai, Japan)

Abstract

Technological developments have opened up research frontiers. Strong pulsed neutron sources encourage us to challenge novel measurements under new sample environments at state-of-the-art spectrometers. The sample itself is also important to get novel innovative results. Here, the current status and major outcomes of J-PARC MLF in Japan will be reported briefly. Then, I will show you our research examples of modern magnetic systems. They are spintronic device materials [1,2,3,4] and 2-dimensional magnetic systems [5] together with a new method of dynamic magnetic pair-density function analysis [6].

References
[1] S. Shamoto, T. U. Ito, H. Onishi, H. Yamauchi, Y. Inamura, M. Matsuura, M. Akatsu et al., Neutron scattering study of yttrium iron garnet. Phys. Rev. B 97, 054429 (2018).
[2] S. Shamoto, Y. Yasui, M. Matsuura, M. Akatsu Y. Kobayashi, Y. Nemoto, and J. Ieda, Ultralow-energy magnon anomaly in yttrium iron garnet. Phys. Rev. Research 2, 033235 (2020).
[3] Y. Nambu and S. Shamoto, Neutron scattering study of yttrium iron garnet for spintronics. J. Phys. Soc. Jpn. 90, 081002 (2021). Special Topics [Review]
[4] S. Shamoto, M. Akatsu, M. Matsuura, S. Ohira-Kawamura, K. Harii, M. Ono, L.-J. Chang, T. U. Ito, Y. Nemoto, and J. Ieda, Magnetic Bragg peak enhancement under ultrasound injection. Phys. Rev. Research 4, 013245 (2022)
[5] S. Shamoto, H. Yamauchi, K. Ikeuchi, M. K. Lee, L.-J. Chang, V. O. Garlea, In Y. Hwang, K. H. Lee, J.-H. Chung, J. Phys. Soc. Jpn., 90, 093703 (2021).
[6] K. Iida, K. Kodama, Y. Inamura, M. Nakamura, L.-J. Chang, S. Shamoto, Magnon mode transition in real space. Research Square (arXiv) https://doi.org/10.21203/rs.3.rs-1586618/v1

Speaker Instroduction

Language

演講語言 (Language): in English

Hosted by

陳洋元 兼任研究員
Chen, Yang Yuan / Adjunct Research Fellow