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The optical tweezer of ferroelectric skyrmions

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arxiv 2001.01614 v1 pith:GYA5WWQC submitted 2020-01-06 cond-mat.mtrl-sci cond-mat.mes-hall

X.-G. Wang , L. Chotorlishvili , V. K. Dugaev , A. Ernst , I. Maznichenko , N. Arnold , Chenglong Jia , J. Berakdar
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I. Mertig J. Barnaś
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classification cond-mat.mtrl-scicond-mat.mes-hall
keywords skyrmionstweezercouplingelectricexternalferroelectricfieldmodel
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Strong magneto-electric coupling in two-dimensional helical materials leads to a peculiar type of topologically protected solutions -- skyrmions. Coupling between the net ferroelectric polarization and magnetization allows control of the magnetic texture with an external electric field. In this work we propose the model of optical tweezer -- a particular configuration of an external electric field and Gaussian laser beam that can trap or release the skyrmions in a highly controlled manner. Functionality of such a tweezer is visualized by micromagnetic simulations and model analysis.

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