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Article overview
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Breaking time reversal symmetry in topological insulators | Cui-Zu Chang
; Peng Wei
; Jagadeesh. S. Moodera
; | Date: |
18 Oct 2014 | Abstract: | A wide class of materials that were discovered to carry a topologically
protected phase order has led to a highly active area of research called
topological insulators. This phenomenon has radically changed our thinking
because of their robust quantum coherent behavior showing two-dimensional
Dirac-type metallic surface states and simultaneously insulating bulk states.
The Dirac SSs are induced by the strong spin-orbit coupling as well as
protected by the time reversal symmetry. Breaking TRS in a TI with
ferromagnetic perturbation can lead to many exotic quantum phenomena, such as
the quantum anomalous Hall effect, topological magnetoelectric effect, as well
as image magnetic monopole. This article presents an overview of the current
status of TRS breaking in TIs and outlines the prospects for future studies | Source: | arXiv, 1410.4983 | Services: | Forum | Review | PDF | Favorites |
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