Progress and prospects in the quantum anomalous Hall effect
Hang Chi, Jagadeesh S. Moodera
Abstract
The quantum anomalous Hall effect refers to the quantization of the Hall effect in the absence of an applied magnetic field. The quantum anomalous Hall effect is of topological nature and well suited for field-free resistance metrology and low-power information processing utilizing dissipationless chiral edge transport. In this Perspective, we provide an overview of the recent achievements as well as the material challenges and opportunities, pertaining to engineering intrinsic/interfacial magnetic coupling, that are expected to propel future development in this field.
Topics & Concepts
Quantum Hall effectQuantization (signal processing)Quantum anomalous Hall effectMagnetic fieldHall effectCondensed matter physicsQuantumField (mathematics)Quantum spin Hall effectEngineering physicsPhysicsNanotechnologyMaterials scienceQuantum mechanicsComputer sciencePure mathematicsComputer visionMathematicsTopological Materials and PhenomenaQuantum and electron transport phenomenaGraphene research and applications