The quantum anomalous Hall effect

Understand

The quantum anomalous Hall effect is defined as a quantized Hall effect realized in a system without external magnetic field.

• Quantum anomalous Hall effect is a novel manifestation of topological structure in many-electron systems, and may have potential applications in future electronic devices.
• In recent years, quantum anomalous Hall effect has been proposed theoretically and realized experimentally.
• In this review article, we provide a systematic overview of the theoretical and experimental developments in this field.