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arXiv 1502.07476cond-mat.mes-hall
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拓扑态环的手征性质

Chiral properties of topological-state loops

Marko M. Grujić, Milan Ž. Tadić, François M. Peeters

摘要:

研究了两个不同拓扑相之间的圆形界面上的手征无带隙模的角动量量子化。通过研究几种不同的设置,我们分析表明,拓扑模式的角动量表现出高度的手征行为,并可以耦合到自旋和/或谷自由度,反映了界面态的性质。对应于这些状态的能量和磁矩可以从半经典图像中理解。这些回路可以被视为具有可调和高度多样化特性的人造磁体的构建块。

英文摘要:

The angular momentum quantization of chiral gapless modes confined to a circularly shaped interface between two different topological phases is investigated. By examining several different setups, we show analytically that the angular momentum of the topological modes exhibits a highly chiral behavior, and can be coupled to spin and/or valley degrees of freedom, reflecting the nature of the interface states. The energies and the magnetic moments corresponding to these states can be understood from a semiclassical picture. These loops can be viewed as building blocks for artificial magnets with tunable and highly diverse properties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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