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Center for Advanced High Magnetic Field of Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, Center for Chiral Science, Hiroshima University, Higashihirosima, Hiroshima 739-8526, Japan
Center for Chiral Science, Hiroshima University, Higashihirosima, Hiroshima 739-8526, Japan, Division of Natural and Environmental Science, The Open University of Japan, Mihama, Chiba 261-8586, Japan
Center for Chiral Science, Hiroshima University, Higashihirosima, Hiroshima 739-8526, Japan, Graduate School of Science, Hiroshima University, Higashihiroshima, Hiroshima 739-8526, Japan
Center for Chiral Science, Hiroshima University, Higashihirosima, Hiroshima 739-8526, Japan, Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
Center for Chiral Science, Hiroshima University, Higashihirosima, Hiroshima 739-8526, Japan, Faculty of Engineering, Kyusyu Institute of Technology, Kitakyushu, Fukuoka, Japan
Center for Chiral Science, Hiroshima University, Higashihirosima, Hiroshima 739-8526, Japan, Graduate School of Science, Hiroshima University, Higashihiroshima, Hiroshima 739-8526, Japan, Department of Physics and Mathematics, Aoyama-Gakuin University, Sagamihara, Kanagawa 252-5258, Japan
Center for Chiral Science, Hiroshima University, Higashihirosima, Hiroshima 739-8526, Japan, Graduate School of Science, Hiroshima University, Higashihiroshima, Hiroshima 739-8526, Japan
Center for Advanced High Magnetic Field of Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, Center for Chiral Science, Hiroshima University, Higashihirosima, Hiroshima 739-8526, Japan
抄録
Recently, magnetic substances with chirality, namely the handedness of the magnetic structure, have attracted considerable attention because of the anomalous phenomena which appear in magnetic fields. CrNb3S6 is one of the chiral magnets formed by exchange and Dzyaloshinsky-Moriya (DM) interactions. Electron spin resonance (ESR) measurements of CrNb3S6 in magnetic fields parallel to the c-axis (helical axis) have been performed to evaluate the exchange and the DM constants that determine the helical structure. Fitting the ESR data to a calculated mode based on a spin wave theory yields values for the ferromagnetic inter-plane exchange constant J/kB = 16.2 K, the DM constant D/kB = 1.29 K, and the single-ion anisotropy constant K /kB = 1.02 K. From the Curie-Weiss temperature θCW ~ 145 K, large intra-plane ferromagnetic exchange interactions are suggested.
内容記述
20th International Conference on Magnetism(ICM 2015), 5th to 10th July, 2015, Barcelona, Spain
雑誌名
Physics Procedia
巻
75
ページ
926 - 931
発行年
2015-07
出版者
Elsevier
ISSN
1875-3892
DOI
https://doi.org/10.1016/j.phpro.2015.12.127
権利
Copyright (c) The Authors. Published by Elsevier B.V.
Creative Commons license
https://creativecommons.org/licenses/by-nc-nd/4.0/
その他のタイトル
Magnetic Resonance in the Chiral Helimagnet CrNb3S6
Magnetic resonance in the chiral helimagnet CrNb3S6
scunit-2018_41.pdf
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