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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| 1367-2630_18_1_013045.pdf | 1.44 MB | Adobe PDF | 見る/開く |
| タイトル: | Nonlinear magnetization dynamics of antiferromagnetic spin resonance induced by intense terahertz magnetic field |
| 著者: | Mukai, Y    https://orcid.org/0000-0002-6641-0841 (unconfirmed)Hirori, H https://orcid.org/0000-0001-6056-8675 (unconfirmed)Yamamoto, T https://orcid.org/0000-0002-7960-1014 (unconfirmed)Kageyama, H Tanaka, K https://orcid.org/0000-0002-2132-8318 (unconfirmed) |
| 著者名の別形: | 廣理, 英基 田中, 耕一郎 |
| キーワード: | terahertz magnet nonlinear optics |
| 発行日: | 21-Jan-2016 |
| 出版者: | IOP Publishing |
| 誌名: | New Journal of Physics |
| 巻: | 18 |
| 論文番号: | 013045 |
| 抄録: | We report on the nonlinear magnetization dynamics of a HoFeO3 crystal induced by a strong terahertz magnetic field resonantly enhanced with a split ring resonator and measured with magneto-optical Kerr effect microscopy. The terahertz magnetic field induces a large change (∼40%) in the spontaneous magnetization. The frequency of the antiferromagnetic resonance decreases in proportion to the square of the magnetization change. A modified Landau-Lifshitz-Gilbert equation with a phenomenological nonlinear damping term quantitatively reproduced the nonlinear dynamics. |
| 著作権等: | © 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| URI: | http://hdl.handle.net/2433/216564 |
| DOI(出版社版): | 10.1088/1367-2630/18/1/013045 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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