Prediction of near-room-temperature quantum anomalous Hall effect on honeycomb materials.

@article{Wu2014PredictionON,
  title={Prediction of near-room-temperature quantum anomalous Hall effect on honeycomb materials.},
  author={Shu-Chun Wu and Guangcun Shan and Binghai Yan},
  journal={Physical review letters},
  year={2014},
  volume={113 25},
  pages={256401}
}
Recently, the long-sough quantum anomalous Hall effect was realized in a magnetic topological insulator. However, the requirement of an extremely low temperature (approximately 30 mK) hinders realistic applications. Based on ab initio band structure calculations, we propose a quantum anomalous Hall platform with a large energy gap of 0.34 and 0.06 eV on honeycomb lattices comprised of Sn and Ge, respectively. The ferromagnetic (FM) order forms in one sublattice of the honeycomb structure by… CONTINUE READING
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