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.
Original language | English |
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Pages (from-to) | 3610-3612 |
Number of pages | 3 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 324 |
Issue number | 21 |
DOIs | |
Publication status | Published - 1 Oct 2012 |
Externally published | Yes |
Keywords
- Helical liquid
- Plasmons
- Spintronics
- Topological insulator