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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| PhysRevB.100.224416.pdf | 388.33 kB | Adobe PDF | 見る/開く |
| タイトル: | Magnon gravitomagnetoelectric effect in noncentrosymmetric antiferromagnetic insulators |
| 著者: | Shitade, Atsuo Yanase, Youichi |
| 著者名の別形: | 下出, 敦夫 栁瀬, 陽一 |
| キーワード: | Magnetism Spin caloritronics Antiferromagnets Holstein-Primakoff method Condensed Matter, Materials & Applied Physics |
| 発行日: | Dec-2019 |
| 出版者: | American Physical Society |
| 誌名: | Physical Review B |
| 巻: | 100 |
| 号: | 22 |
| 論文番号: | 224416 |
| 抄録: | We study the magnon contribution to the gravitomagnetoelectric (gravito-ME) effect, in which the magnetization is induced by a temperature gradient, in noncentrosymmetric antiferromagnetic insulators. This phenomenon is totally different from the ME effect, because the temperature gradient is coupled to magnons but an electric field is not. We derive a general formula of the gravito-ME susceptibility in terms of magnon wave functions and find that a difference in g factors of magnetic ions is crucial. We also apply our formula to a specific model. Although the obtained gravito-ME susceptibility is small, we discuss several ways to enhance this phenomenon. |
| 著作権等: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. |
| URI: | http://hdl.handle.net/2433/279609 |
| DOI(出版社版): | 10.1103/PhysRevB.100.224416 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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