Spin-plasmons in topological insulator

[摘要] Collective plasmon excitations in a helical electron liquid on the surface of strong three-dimensional topological insulator are considered. The properties and internal structure of these excitations are studied. Due to spin-momentum locking in helical liquid on a surface of topological insulator, the collective excitations should manifest themselves as coupled charge- and spin-density waves. (C) 2012 Esevier B.V. All rights reserved.

[发布日期] 2012-10-01

[效力级别]  Proceedings Paper

[关键词] Topological insulator;Plasmons;Helical liquid;Spintronics