Dirac Surface States in Magnonic Analogs of Topological Crystalline Insulators
Dirac Surface States in Magnonic Analogs of Topological Crystalline Insulators
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拓扑晶体绝缘体磁波类似物中的狄拉克表面态
DOI：
10.1103/physrevlett.127.177201
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发表时间：
2021
影响因子：
8.6
通讯作者：
Yutaka Akagi
中科院分区：
文献类型：
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作者：
Hiroki Kondo;Yutaka Akagi
我们提出了具有狄拉克表面态的拓扑晶体绝缘体的磁振子类似物的时间反转和半平移的组合对称性的保护。通过建立拓扑磁振子系统模型，我们证明了由于狄拉克表面态的自旋-动量锁定，系统中会有能流响应于电场而流动.我们还提出了在具有单斜结构的磁性化合物中实现拓扑晶体绝缘体的磁振子类似物。
We propose magnonic analogs of topological crystalline insulators which possess Dirac surface states protected by the combined symmetry of time reversal and half translation. Constructing models of the topological magnon systems, we demonstrate that an energy current flows through the systems in response to an electric field, owing to the Dirac surface states with the spin-momentum locking. We also propose a realization of the magnonic analogs of topological crystalline insulators in the magnetic compoundwith a monoclinic structure.