Spin-plasmons in topological insulator

Details Spin-plasmons in topological insulator Spin-plasmons in topological insulator

2011-07-23

arxiv.org/abs/1107.4695v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 2 figures

Scientific paper

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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