WEKO3
アイテム
Spin Berry phase in anisotropic topological insulators
https://hiroshima.repo.nii.ac.jp/records/2008105
https://hiroshima.repo.nii.ac.jp/records/2008105194c85f7-61af-49c1-b47d-97d3b0f8ba18
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
PhysRevB.84.195406.pdf (598.4 KB)
|
| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-03-18 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Spin Berry phase in anisotropic topological insulators | |||||||||||
| 言語 | en | |||||||||||
| 作成者 |
Imura, Ken-Ichiro
× Imura, Ken-Ichiro
× Takane, Yositake
× Tanaka, Akihiro
|
|||||||||||
| アクセス権 | ||||||||||||
| アクセス権 | open access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
| 権利情報 | ||||||||||||
| 権利情報 | (c) 2011 American Physical Society | |||||||||||
| 主題 | ||||||||||||
| 主題Scheme | NDC | |||||||||||
| 主題 | 420 | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述 | Three-dimensional topological insulators are characterized by the presence of protected gapless spin helical surface states. In realistic samples these surface states are extended from one surface to another, covering the entire sample. Generally, on a curved surface of a topological insulator an electron in a surface state acquires a spin Berry phase as an expression of the constraint that the effective surface spin must follow the tangential surface of real space geometry. Such a Berry phase adds up to π when the electron encircles, e.g., once around a cylinder. Realistic topological insulators compounds are also often layered, i.e., are anisotropic. We demonstrate explicitly the existence of such a π Berry phase in the presence and absence (due to crystal anisotropy) of cylindrical symmetry, that is, regardless of fulfilling the spin-to-surface locking condition. The robustness of the spin Berry phase π against cylindrical symmetry breaking is confirmed numerically using a tight-binding model implementation of a topological insulator nanowire penetrated by a π-flux tube. | |||||||||||
| 言語 | en | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | American Physical Society | |||||||||||
| 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 | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
| 関連情報 | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1103/PhysRevB.84.195406 | |||||||||||
| 関連情報 | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | http://dx.doi.org/10.1103/PhysRevB.84.195406 | |||||||||||
| 収録物識別子 | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 1098-0121 | |||||||||||
| 収録物識別子 | ||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||
| 収録物識別子 | AA11187113 | |||||||||||
| 開始ページ | ||||||||||||
| 開始ページ | 195406 | |||||||||||
| 書誌情報 |
Physical Review B Physical Review B 巻 84, 号 19, p. 195406, 発行日 2011 |
|||||||||||
| 旧ID | 33951 | |||||||||||
