Spin-plasmons in topological insulator
classification
❄️ cond-mat.mes-hall
keywords
excitationsinsulatortopologicalcollectivehelicalliquidsurfacecharge-
read the original 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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