Time-reversal symmetry breaking in a square lattice

被引：1

作者：

Jimenez, Kevin ^{[1
]}

Reslen, Jose ^{[1
]}

机构：

[1] Univ Atlantico, Coordinac Fis, Carrera 30 Numero 8-49, Puerto Colombia, Colombia

来源：

JOURNAL OF PHYSICS COMMUNICATIONS | 2021年 / 5卷 / 04期

关键词：

time-reversal symmetry breaking; topological insulators; anomalous quantum hall effect;

D O I：

10.1088/2399-6528/abf024

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The bulk conductivity of a two-dimensional system is studied assuming that time-reversal symmetry is broken by internal mechanisms. The study is carried out by direct diagonalization in order to explore the nonlinear-response provoked by the inclusion of an electric field in the system's Hamiltonian. The system displays a quantized conductivity that depends on the intensity of the field and under specific conditions the conductivity limit at zero electric field displays a nonvanishing value.

引用

页数：8

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