Majorana bound states in magnetic skyrmions
Majorana bound states in magnetic skyrmions
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DOI：
10.1103/physrevb.93.224505
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发表时间：
2016-02
影响因子：
3.7
通讯作者：
Guang Yang;P. Stano;J. Klinovaja;D. Loss
中科院分区：
文献类型：
--
作者：
Guang Yang;P. Stano;J. Klinovaja;D. Loss
磁skyrmions是高度移动的纳米级拓扑自旋纹理。我们表明，无论是分析和数值，一个磁skyrmion的一个均匀的方位角绕组数放置在接近的s波超导体主机在其核心的零能量马约拉纳束缚态，当巡回电子和skyrmion之间的交换耦合是强的。这种马约拉纳束缚态是稳定的存在下的自旋轨道相互作用。我们建议使用超导三结实现非阿贝尔统计的马约拉纳束缚态。
Magnetic skyrmions are highly mobile nanoscale topological spin textures. We show, both analytically and numerically, that a magnetic skyrmion of an even azimuthal winding number placed in proximity to an s-wave superconductor hosts a zero-energy Majorana bound state in its core, when the exchange coupling between the itinerant electrons and the skyrmion is strong. This Majorana bound state is stabilized by the presence of a spin-orbit interaction. We propose the use of a superconducting trijunction to realize non-Abelian statistics of such Majorana bound states.