薄带纳米条中一维斯格明子阵列中的耦合旋进模式作为新型信息载体。

Coupled gyration modes in one-dimensional skyrmion arrays in thin-film nanostrips as new type of information carrier.

机构信息

National Creative Research Initiative Center for Spin Dynamics and Spin-Wave Devices, Nanospinics Laboratory, Research Institute of Advanced Materials, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Republic of Korea.

出版信息

Sci Rep. 2017 Mar 22;7:45185. doi: 10.1038/srep45185.

DOI:10.1038/srep45185

PMID:28327624

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5361123/

Abstract

We report on a micromagnetic numerical simulation study of dynamic coupling between neighboring skyrmions periodically arranged in narrow-width nanostrips. We explored the coupled gyration modes and their characteristic dispersions in terms of the interdistance between the neighboring skyrmions. The application of perpendicular magnetic fields allows for the control and modification of the dispersion of the coupled gyration modes. The coupled gyration modes of individual skyrmions might provide a new type of information carrier in narrow-width straight and curved nanostrips, as driven by magnetic interactions in such continuous thin films.

摘要

我们报告了一项关于相邻斯格明子在窄带纳米条中周期性排列的动态耦合的微磁数值模拟研究。我们根据相邻斯格明子之间的距离，研究了耦合旋进模式及其特征色散。施加垂直磁场可以控制和改变耦合旋进模式的色散。在这种连续薄膜中，由于磁相互作用的驱动，单个斯格明子的耦合旋进模式可能为窄带直线和弯曲纳米条中的一种新型信息载体。