“Colloquium : Quantum anomalous Hall effect” (2023), by Cui‐Zu Chang et al. Physics and Astronomy research paper. Original abstract below, unchanged. A free PDF is available.

Colloquium : Quantum anomalous Hall effect

Cui‐Zu Chang, Chao‐Xing Liu, Allan H. MacDonald · January 23, 2023 · Physics and Astronomy

Abstract

The quantum Hall effect, discovered by von Klitzing more than 40 years ago, requires strong magnetic fields for its realization. More recently it was found that the effect can also be realized in zero magnetic field as a result of spontaneous time-reversal symmetry breaking. This Colloquium discusses the physics underlying this quantum anomalous Hall effect, the materials it is observed in, and potential applications.

Free PDF DOI: 10.1103/revmodphys.95.011002