Topological surface States in three-dimensional magnetic insulators.

Volume: 101, Issue: 18, Pages: 186805
Published: Oct 31, 2008
Abstract
An electron moving in a magnetically ordered background feels an effective magnetic field that can be both stronger and more rapidly varying than typical externally applied fields. One consequence is that insulating magnetic materials in three dimensions can have topologically nontrivial properties of the effective band structure. For the simplest case of two bands, these ``Hopf insulators'' are characterized by a topological invariant as in...
Paper Details
Title
Topological surface States in three-dimensional magnetic insulators.
Published Date
Oct 31, 2008
Volume
101
Issue
18
Pages
186805
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