Chiral properties of topological-state loops

被引：6

作者：

Grujic, Marko M. ^{[1
,2
]}

Tadic, Milan Z. ^{[1
]}

Peeters, Francois M. ^{[2
]}

机构：

[1] Univ Belgrade, Sch Elect Engn, Belgrade 11120, Serbia

[2] Univ Antwerp, Dept Phys, B-2020 Antwerp, Belgium

来源：

PHYSICAL REVIEW B | 2015年 / 91卷 / 24期

关键词：

HEXAGONAL BORON-NITRIDE; DIRAC FERMIONS; GRAPHENE; TRANSPORT;

D O I：

10.1103/PhysRevB.91.245432

中图分类号：

T [工业技术];

学科分类号：

08 ;

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. A simple general one-dimensional model, valid for arbitrarily shaped loops, is shown to predict the corresponding energies and the magnetic moments. These loops can be viewed as building blocks for artificial magnets with tunable and highly diverse properties.

引用

页数：6

共 41 条

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