物理
凝聚态物理
奇偶性(物理)
拓扑绝缘体
量子霍尔效应
量子自旋霍尔效应
量子反常霍尔效应
T对称
超导电性
马约拉纳
反射对称性
磁场
绕组编号
量子力学
拓扑(电路)
数学分析
组合数学
数学
几何学
作者
Arbel Haim,Roni Ilan,Jason Alicea
标识
DOI:10.1103/physrevlett.123.046801
摘要
In magnetically doped thin-film topological insulators, aligning the magnetic moments generates a quantum anomalous Hall phase supporting a single chiral edge state. We show that as the system demagnetizes, disorder from randomly oriented magnetic moments can produce a ``quantum anomalous parity Hall'' phase with helical edge modes protected by a unitary reflection symmetry. We further show that introducing superconductivity, combined with selective breaking of reflection symmetry by a gate, allows for creation and manipulation of Majorana zero modes via purely electrical means and at zero applied magnetic field.
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