Gate-Controllable Magneto-optic Kerr Effect in Layered Collinear Antiferromagnets

Using symmetry arguments and a tight-binding model, we show that for layered collinear antiferromagnets, magneto-optic effects can be generated and manipulated by controlling crystal symmetries through a gate voltage. This provides a promising route for electric field manipulation of the magneto-opt...

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Bibliographic Details
Published inPhysical review letters Vol. 117; no. 26; p. 267203
Main Authors Sivadas, Nikhil, Okamoto, Satoshi, Xiao, Di
Format Journal Article
LanguageEnglish
Published United States 23.12.2016
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Summary:Using symmetry arguments and a tight-binding model, we show that for layered collinear antiferromagnets, magneto-optic effects can be generated and manipulated by controlling crystal symmetries through a gate voltage. This provides a promising route for electric field manipulation of the magneto-optic effects without modifying the underlying magnetic structure. We further demonstrate the gate control of the magneto-optic Kerr effect (MOKE) in bilayer MnPSe_{3} using first-principles calculations. The field-induced inversion symmetry breaking effect leads to gate-controllable MOKE, whose direction of rotation can be switched by the reversal of the gate voltage.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.117.267203