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磁性斯格明子:拓扑磁性的展现

Magnetic skyrmions: revealing topological magnetism

  • 摘要: 磁性斯格明子是一种具有准粒子特性并且受拓扑保护的自旋结构。目前,磁性斯格明子已经在许多空间对称性破缺的磁性体系中被观测到。磁性斯格明子的拓扑性质可以通过拓扑霍尔效应、拓扑自旋动力学性质、拓扑湮灭等现象得到揭示。磁性斯格明子和电流之间极为有效的相互作用,使得磁性斯格明子非常有希望在自旋电子学相关领域得到应用。

     

    Abstract: Magnetic skyrmions are particle-like spin structures protected by their topology. So far, they have been observed in many magnetic materials or magnetic structures where inversion symmetry is broken. Their topological properties have been revealed via the topological Hall effect, topological spin dynamics, topological annihilation, and so forth. An extremely efficient coupling between the skyrmions and charge current has also been reported, making magnetic skyrmions one of the most promising candidates for future spintronics applications.

     

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