Topological Anderson Insulator in Three Dimensions
arXiv:1006.2777 · doi:10.1103/PhysRevLett.105.216601
Abstract
Disorder, ubiquitously present in solids, is normally detrimental to the stability of ordered states of matter. In this letter we demonstrate that not only is the physics of a strong topological insulator robust to disorder but, remarkably, under certain conditions disorder can become fundamentally responsible for its existence. We show that disorder, when sufficiently strong, can transform an ordinary metal with strong spin-orbit coupling into a strong topological `Anderson' insulator, a new topological phase of quantum matter in three dimensions.
5 pages, 2 figures. For related work and info visit http://www.physics.ubc.ca/~franz/
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