Reversible Transformation between Isolated Skyrmions and Bimerons
Reversible Transformation between Isolated Skyrmions and Bimerons
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DOI：
10.1021/acs.nanolett.2c03106
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发表时间：
2022-10-19
期刊：
影响因子：
10.8
通讯作者：
Liu, Xiaoxi
中科院分区：
文献类型：
--
作者：
Ohara, Kentaro;Zhang, Xichao;Liu, Xiaoxi
Skyrmions和bimerons是通用的拓扑自旋纹理，可以用作经典和量子计算的信息位。在基于多个不同拓扑位的计算体系结构中，孤立的天际线和双子星之间的转换是一项必不可少的操作。本文报道了利用电流诱导的奥斯德场和温度诱导的垂直磁各向异性变化，产生孤立的天子并随后转化为双元子。该变换是可逆的，由电流振幅和扫描方向控制。通过skyrmins -bimeron变换和磁化开关，可以在同一体系中产生skyrmins和bimerons。变形的skyrmion气泡和手性迷宫域被发现为非平凡的中间过渡态。我们的研究结果可能为在同一系统中使用不同类型的拓扑自旋纹理构建先进的信息处理设备提供了一种独特的方法。
Skyrmions and bimerons are versatile topological spin textures that can be used as information bits for both classical and quantum computing. The transformation between isolated skyrmions and bimerons is an essential operation for computing architecture based on multiple different topological bits. Here we report the creation of isolated skyrmions and their subsequent transformation to bimerons by harnessing the electric current induced Oersted field and temperature-induced perpendicular magnetic anisotropy variation. The transformation between skyrmions and bimerons is reversible, which is controlled by the current amplitude and scanning direction. Both skyrmions and bimerons can be created in the same system through the skyrmion-bimeron transformation and magnetization switching. Deformed skyrmion bubbles and chiral labyrinth domains are found as nontrivial intermediate transition states. Our results may provide a unique way for building advanced information-processing devices using different types of topological spin textures in the same system.