D. Schmeltzer
Published 2013-03-05Version 1
The surface conductivity for conduction electrons with a fixed chirality in a topological insulator with impurities scattering is considered. The surface excitations are described by the Weyl Hamiltonian. For a finite chemical potential one projects out the hole band and one obtains a single electronic band with a fixed chirality. One obtains a model of spinless electrons which experience a half vortex when they return to the origin. As a result the conductivity is equivalent to a spinless problem with correlated noise which gives rise to anti-localization. We compute conductivity as a function of frequency and compare our results with the $Raman$ shift measurement for $Bi_{2}Se_{3}$.
Unified description of Dirac electrons on a curved surface of topological insulators
Tunneling through ferromagnetic barriers on the surface of a topological insulator
Surface plasmon polaritons in topological insulator
![QR code for arXiv:1303.1021 [cond-mat.mes-hall]](http://oss.arxitics.com/images/favicon.svg)