Intrinsic quantized anomalous Hall effect in a moiré heterostructure
University of California, Santa Barbara · National Institute for Materials Science
Abstract
Quantum anomalous Hall goes intrinsic Quantum anomalous Hall effect—the appearance of quantized Hall conductance at zero magnetic field—has been observed in thin films of the topological insulator Bi 2 Se 3 doped with magnetic atoms. The doping, however, introduces inhomogeneity, reducing the temperature at which the effect occurs. Two groups have now observed quantum anomalous Hall effect in intrinsically magnetic materials (see the Perspective by Wakefield and Checkelsky). Serlin et al. did so in twisted bilayer graphene aligned to hexagonal boron nitride, where the effect enabled the switching of magnetization with tiny currents. In a complementary work, Deng et al. observed quantum anomalous Hall effect in…
Citation impact
- FWCI
- 87.71
- Percentile
- 100%
- References
- 44
Authors
9- MSM. SerlinCorresponding
University of California, Santa Barbara
- CLC. L. TschirhartCorresponding
University of California, Santa Barbara
- HPH. PolshynCorresponding
University of California, Santa Barbara
- YZY. Zhang
University of California, Santa Barbara
- JZJ. Zhu
University of California, Santa Barbara
Topics & keywords
- Hall effect
- Bilayer graphene
- Heterojunction
- Magnetism
- Quantum Hall effect
- Electron
- Quantization (signal processing)
- Magnetic field