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arXiv · 1107.4695

Spin-plasmons in topological insulator

D. K. Efimkin·Yu. E. Lozovik·A. A. Sokolik
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Abstract

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.

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D. K. Efimkin, Yu. E. Lozovik, A. A. Sokolik. 2011-07-23. Spin-plasmons in topological insulator. https://doi.org/10.1016/j.jmmm.2012.02.102

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