论文标题
椭圆形的天空：Antiskyrmion托管材料中的磁尖端理论和成核
Elliptical skyrmions: theory and nucleation by a magnetic tip in an antiskyrmion-hosting material
论文作者
论文摘要
由[1]和[2]中的实验发现的动机，我们发现椭圆形的天空可以用dzyaloshinskii-Moriya相互作用（DMI）在材料中成核，该相互作用（DMI）支持Antiskyrmions。 DMI有利于沿给定方向的天空延伸，因此其特征在于两个大小参数。我们使用Belavin-Polyakov（BP）纯交换模型来得出椭圆形天空的分析特性。我们表明，通常偏爱各向同性天际或反对者的DMI也可以分别支持椭圆形的反扰动或天际。使用从[1]提取的真实材料参数并包括所有相关相互作用，数值计算表明，可以通过磁力显微镜在DMI中使用的磁力显微镜尖端从条纹或迷宫域状态中对椭圆形的天际含量进行成核，该磁力显微镜尖端具有dmi，该磁力较大的反孔偏见的反式抗微含量至少是几个小本土层。
Motivated by experimental findings in [ 1 ] and [ 2 ], we find an elliptical skyrmion can be nucleated in a material with a Dzyaloshinskii-Moriya interaction (DMI) that supports antiskyrmions. The DMI favors the elongation of the skyrmion along a given direction so that it is characterized by two size parameters. We derive analytical properties of the elliptical skyrmion using the Belavin-Polyakov (BP) pure exchange model. We show that the DMI which typically favors isotropic skyrmions or antiskyrmions, respectively, can also support elliptical antiskyrmions or skyrmions, respectively. Using the real material parameters extracted from [1] and including all relevant interactions, numerical computations indicate that the elliptical skyrmion can be nucleated from the stripe or labyrinth domain state by a magnetic force microscope tip in a thin film with a DMI favoring antiskyrmions that consists of at least a few atomic layers.
