| 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 |
Spherical topological insulator |
|
言語 |
en |
| 作成者 |
Imura, Ken-Ichiro
Yoshimura, Yukinori
Takane, Yositake
Fukui, Takahiro
|
| 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) 2012 American Physical Society |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
420 |
| 内容記述 |
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|
内容記述 |
The electronic spectrum on the spherical surface of a topological insulator reflects an active property of the helical surface state that stems from a constraint on its spin on a curved surface. The induced spin connection can be interpreted as an effective vector potential associated with a fictitious magnetic monopole induced at the center of the sphere. The strength of the induced magnetic monopole is found to be g=±2π, being the smallest finite (absolute) value compatible with the Dirac quantization condition. We have established an explicit correspondence between the bulk Hamiltonian and the effective Dirac operator on the curved spherical surface. An explicit construction of the surface spinor wave functions implies a rich spin texture possibly realized on the surface of topological insulator nanoparticles. The electronic spectrum inferred by the obtained effective surface Dirac theory, confirmed also by the bulk tight-binding calculation, suggests a specific photoabsorption/emission spectrum of such nanoparticles. |
|
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.86.235119 |
| 関連情報 |
|
|
|
識別子タイプ |
URI |
|
|
関連識別子 |
http://link.aps.org/doi/10.1103/PhysRevB.86.235119 |
| 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 |
235119 |
| 書誌情報 |
Physical Review B
Physical Review B
巻 86,
号 23,
p. 235119,
発行日 2012
|
| 旧ID |
34062 |
PhysRevB.86.235119.pdf (257.5 KB)
