Discretized evolution of solitons in the achiral stripe phase of a Fe/Gd thin film
Discretized evolution of solitons in the achiral stripe phase of a Fe/Gd thin film
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DOI：
10.1103/physrevb.105.094423
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发表时间：
2022-03
影响因子：
3.7
通讯作者：
A. Singh;M. Sanyal;J. Lee;J. Chess;R. Streubel;S. Montoya;M. Mukhopadhyay;B. McMorran;E. Fullerton;P. Fischer;S. Kevan;S. Roy
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作者：
A. Singh;M. Sanyal;J. Lee;J. Chess;R. Streubel;S. Montoya;M. Mukhopadhyay;B. McMorran;E. Fullerton;P. Fischer;S. Kevan;S. Roy
理解从条纹到skyrmion纹理的磁相变提供了对系统演化的中间拓扑细节的基本科学见解。在具有Dzyaloshinskiii-Moriya相互作用的材料中，观察到条纹相和skyrmion相的自旋织构的孤子性质。在这里，我们表明，在偶极相互作用介导的Fe/Gd多层膜，表现出非手性条纹纹理的行为类似于一个有限大小的手征孤子晶格的场演化。作为磁场的函数，当条纹缠绕成skyrmions时，条纹表现出指示中间拓扑结构的周期性的离散跳跃。
Understanding magnetic phase transitions from stripe to skyrmion textures provide fundamental scientific insights into the details of the intermediate topologies through which the system evolves. The solitonic nature of spin texture in both stripe and skyrmion phases has been observed in materials with Dzyaloshinskii-Moriya interaction. Here we show that the field evolution in a dipolar interaction mediated Fe/Gd multilayer that exhibits achiral stripe textures behaves similar to a finite-sized chiral soliton lattice. As a function of magnetic field, the stripes exhibit discrete jumps in periodicity indicative of intermediate topologies as the stripes get wound into skyrmions.