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Antiphase oscillations in the time-resolved spin structure factor of a photoexcited Mott Insulator on a square lattice
https://repo.qst.go.jp/records/85658
https://repo.qst.go.jp/records/85658f73e33b6-b6c4-4d3a-b6b1-99b659052187
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-09-24 | |||||
| タイトル | ||||||
| タイトル | Antiphase oscillations in the time-resolved spin structure factor of a photoexcited Mott Insulator on a square lattice | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Tohyama, Takami
× Tohyama, Takami× Shinjo, Kazuya× Tsutsui, Kenji× Kenji, Tsutsui |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We investigate momentum-dependent transient spin dynamics after photoirradiation in a two-dimensional Mott insulator described by a half-filled Hubbard model on a square lattice by using a numerically exact-diagonalization technique. We find a temporal oscillation in the static spin structure factor of a square-root 18 times square-root 18 periodic lattice. The oscillation exhibits an antiphase behavior between, for example, two orthogonal momentum directions parallel and perpendicular to the electric field of a pump pulse. The origin of the antiphase oscillation is attributed to a photoexcited wave function that has overlap with eigenstates producing the B1g bimagnon Raman intensity. Observing such antiphase oscillations will be a big challenge for time-resolved resonant elastic x-ray scattering experiments. | |||||
| 書誌情報 |
Journal of Physics: Conference Series 巻 2164, p. 012049, 発行日 2022-03 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1742-6588 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1088/1742-6596/2164/1/012049 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://iopscience.iop.org/article/10.1088/1742-6596/2164/1/012049 | |||||
