English

In-Plane Magnetic-Field-Induced Quantum Anomalous Hall Plateau Transition

Mesoscale and Nanoscale Physics 2019-10-15 v2 Materials Science

Abstract

We study the critical properties of the in-plane magnetic field-induced quantum anomalous Hall (QAH) plateau transition in axion insulators. Take even septuple layer film MnBi2_2Te4_4 as a concrete example, we find the mirror symmetry breaking from in-plane field could induce axion insulator to QAH insulator transition, which belongs to generic integer quantum Hall plateau transition. The chiral Majorana fermion does not necessarily emerge at the QAH plateau transition in MnBi2_2Te4_4 due to strong exchange field, but may be quite feasible in its descendent materials MnBi4_4Te7_7 and MnBi6_6Te10_{10}.

Keywords

Cite

@article{arxiv.1905.05919,
  title  = {In-Plane Magnetic-Field-Induced Quantum Anomalous Hall Plateau Transition},
  author = {Jinlong Zhang and Zhaochen Liu and Jing Wang},
  journal= {arXiv preprint arXiv:1905.05919},
  year   = {2019}
}

Comments

5 pages, 4 figures