Collective excitations on a surface of topological insulator
We study collective excitations in a helical electron liquid on a surface of three-dimensional topological insulator. Electron in helical liquid obeys Dirac-like equation for massless particles and direction of its spin is strictly determined by its momentum. Due to this spin-momentum locking, colle...
| Main Authors: | , , |
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| Format: | Online |
| Language: | English |
| Published: |
Springer
2012
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3341197/ |