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arXiv · 1607.02156

Gate-controllable magneto-optic Kerr effect in layered collinear antiferromagnets

Nikhil Sivadas·Satoshi Okamoto·Di Xiao
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Abstract

Using symmetry arguments and a tight-binding model, we show that for layered collinear anti- ferromagnets, 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 magneto-optic Kerr effect (MOKE) in bilayer MnPSe3 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.

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Nikhil Sivadas, Satoshi Okamoto, Di Xiao. 2016-10-17. Gate-controllable magneto-optic Kerr effect in layered collinear antiferromagnets. https://doi.org/10.1103/physrevlett.117.267203

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