Quantum singularity in topological insulators

Quantum singularity in topological insulators
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拓扑绝缘体中的量子奇点

DOI:
10.1088/1361-648x/ab1233
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发表时间:
2019
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
通讯作者:
Izumi Tanaka
Izumi Tanaka
中科院分区:
--
文献类型:
--
作者:
Izumi Tanaka

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三维拓扑绝缘体中的位错具有与空穴穿线磁通类似的效应。在本研究中,我们利用狄拉克方程和修正的狄拉克方程解析地考虑了三维拓扑绝缘体中的位错。起源于位错的量子奇点在动量空间中产生了一个缺陷。这个缺陷涉及相变,并导致拓扑保护的零能量模式绑定到量子奇点。
Dislocations in the three-dimensional topological insulator have a similar effect as a hole threading magnetic flux. In this study, we have analytically considered a dislocation in three-dimensional topological insulator using the Dirac and the modified Dirac equation. A quantum singularity that originated in the dislocation creates a defect in momentum space. This defect relates to a phase transition and causes topologically protected zero-energy mode bound to the quantum singularity.
DOI: 10.1103/physrevlett.95.146802
发表时间: 2005-09-30
影响因子: 8.6
作者:
Kane, CL;Mele, EJ
通讯作者: Mele, EJ