Impurity scattering in the bulk of topological insulators

Details Impurity scattering in the bulk of topological insulators Impurity scattering in the bulk of topological insulators

2011-11-07

arxiv.org/abs/1111.1512v1

Physics

Condensed Matter

Materials Science

5 pages, comments are welcome

Scientific paper

We study in this paper time-reversal $\delta$-impurity scattering effects in the bulk of topological insulators (TI) in two and three dimensions. Specifically we consider how impurity scattering strength is affected by the bulk band structure of topological insulators. An interesting band inversion effect associated with the change of the system from ordinary to topological insulator is pointed out. Experimental consequences of our findings are discussed.

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