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首页> 外文期刊>Journal of physics, A. Mathematical and theoretical >Heisenberg spins on a bilayer connected by a neck and other geometries with a characteristic length scale
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Heisenberg spins on a bilayer connected by a neck and other geometries with a characteristic length scale

机译:海森堡在双层结构上旋转,该双层结构由具有特征长度尺度的脖子和其他几何形状连接

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摘要

We obtain a half-skyrmion solution in the orientation of Heisenberg spins on a neck joining two planes with a semi-circular region. In addition, we consider several geometries, topologically equivalent to either a plane with a hole or a truncated circular cone or a cylinder due to the presence of an intrinsic length scale, for which we obtain skyrmion solutions. We also consider two minimal surfaces, namely a catenoid and a helicoid. Finally, we consider Heisenberg spins on single-sheet paraboloid and hyperboloid geometries. These spin textures may possibly be realized in elastically soft, curved magnetic thin films.
机译:我们在连接两个带有半圆形区域的平面的脖子上的海森堡自旋的方向上获得了一个半Skyrmion解。此外,由于存在固有的长度尺度,我们考虑了几种几何形状,这些几何形状在拓扑上等效于带有孔的平面或截顶的圆锥或圆柱体,为此我们获得了天空形子解。我们还考虑了两个最小曲面,即一个链面和一个螺旋面。最后,我们考虑海森堡在单层抛物面和双曲面几何上旋转。这些自旋纹理可能可以在弹性柔软的弯曲磁性薄膜中实现。

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