Abstract

This work studies the behavior of magnetic skyrmions forming on columnar defects of potential well type in uniaxial ferromagnetic films in a magnetic field. It is shown that their structure, which is characterized by three sections of magnetic moment rotation, undergoes a series of transformations in a magnetic field. Critical fields for the restructuring of their structure, which substantially depend on the parameters of the defect, are found. It is found that for certain material parameters, when, in the absence of a field, vortex-like irregularities are unstable, they can become stable formations in a nonzero field. Possible types of magnetic materials in which they can be realized are considered.

中文翻译：

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具有柱状缺陷的磁性单轴薄膜的磁化反转的特异性

摘要

这项工作研究了在磁场中单轴铁磁膜中潜在势阱型柱状缺陷上形成的天空铁电离子的行为。结果表明，它们的结构以三个磁矩旋转部分为特征，在磁场中经历了一系列变换。找到了用于结构重组的关键场，这些场基本上取决于缺陷的参数。发现对于某些材料参数，当不存在场时，涡状不规则形不稳定时，它们可以成为非零场中的稳定地层。考虑了可以实现它们的磁性材料的可能类型。