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arXiv · 1502.07476

Chiral properties of topological-state loops

Marko M. Grujić·Milan Ž. Tadić·François M. Peeters
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Abstract

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.

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Marko M. Grujić, Milan Ž. Tadić, François M. Peeters. 2015-06-05. Chiral properties of topological-state loops. https://doi.org/10.1103/physrevb.91.245432

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