论文标题

铁电空的光学镊子

The optical tweezer of ferroelectric skyrmions

论文作者

Wang, X. -G., Chotorlishvili, L., Dugaev, V. K., Ernst, A., Maznichenko, I., Arnold, N., Jia, Chenglong, Berakdar, J., Mertig, I., Barnaś, J.

论文摘要

二维螺旋材料中的强磁电耦合导致一种特殊的拓扑保护溶液 - 天空。净铁电偏振和磁化之间的耦合可以通过外部电场控制磁纹理。在这项工作中,我们提出了光学镊子的模型 - 外部电场和高斯激光束的特殊配置,可以以高度控制的方式捕获或释放天空。通过微磁模拟和模型分析可视化这种镊子的功能。

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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