Floquet Theory of Photoinduced Topological Phase Transitions in the Organic Salt α-(BEDT-TTF)₂I₃ Irradiated with Elliptically Polarized Light
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説明
We theoretically investigate possible photoinduced topological phase transitions in the organic salt $��$-(BEDT-TTF)$_2$I$_3$, which possesses a pair of inclined massless Dirac-cone bands between the conduction and valence bands under uniaxial pressure. The Floquet analyses of a driven tight-binding model for this material reveal rich photoinduced variations of band structures, Chern numbers, and Hall conductivities under irradiation with elliptically polarized light. The obtained phase diagrams contain a variety of nonequilibrium steady phases, e.g., the Floquet Chern insulator, Floquet semimetal, and Floquet normal insulator phases. This work widens a scope of target materials for research on photoinduced topological phase transitions and contributes to development of research on the optical manipulations of electronic states in matters.
14 pages, 9 figures, to be published in Journal of the Physical Society of Japan
収録刊行物
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 90 (10), 104705-, 2021-10
Tokyo : Physical Society of Japan
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詳細情報 詳細情報について
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- CRID
- 1523669556025130752
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- NII論文ID
- 40022710303
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- NII書誌ID
- AA00704814
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- ISSN
- 00319015
- 13474073
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- NDL書誌ID
- 031737666
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- 本文言語コード
- en
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- 資料種別
- journal article
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- NDL 雑誌分類
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- ZM35(科学技術--物理学)
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- データソース種別
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- NDLサーチ
- Crossref
- CiNii Articles
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