Topological Anderson Insulator in Three Dimensions

Details Topological Anderson Insulator in Three Dimensions Topological Anderson Insulator in Three Dimensions

2010-06-14

arxiv.org/abs/1006.2777v1

Phys. Rev. Lett. 105, 216601 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 2 figures. For related work and info visit http://www.physics.ubc.ca/~franz/

Scientific paper

10.1103/PhysRevLett.105.216601

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.

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