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The optical tweezer of skyrmions

Wang, Xi-Guang, Chotorlishvili, Levan, Dugaev, Vitalii K., Ernst, Arthur, Maznichenko, Igor V., Arnold, Nikita, Jia, Chenglong, Berakdar, Jamal, Mertig, Ingrid, Barnaś, Józef·2020·npj Computational Materials
DOI 10.1038/s41524-020-00402-7
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Abstract

In a spin-driven multiferroic system, the magnetoelectric coupling has the form of effective dynamical Dzyaloshinskii–Moriya (DM) interaction. Experimentally, it is confirmed, for instance, for Cu 2 OSeO 3, that the DM interaction has an essential role in the formation of skyrmions, which are topologically protected magnetic structures. Those skyrmions are very robust and can be manipulated through an electric field. The external electric field couples to the spin-driven ferroelectric polarization and the skyrmionic magnetic texture emerged due to the DM interaction. In this work, we demonstrate the effect of optical tweezing. For a particular configuration of the external electric fields it is possible to trap or release the skyrmions in a highly controlled manner. The functionality of the proposed tweezer is visualized by micromagnetic simulations and model analysis.

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Metadata

Authors
Wang, X.-G., Chotorlishvili, L., Dugaev, V. K., Ernst, A., Maznichenko, I. V., Arnold, N., Jia, C., Berakdar, J., Mertig, I., & Barnaś, J.
Venue
npj Computational Materials
Publisher
Springer Science and Business Media LLC
Published
2020-09-18
Volume
6
Issue
1
ISSN
2057-3960
DOI
10.1038/s41524-020-00402-7
Cited by
35
References
0
Language
en
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