Effect of surface disorder on the chiral surface states of a three-dimensional quantum Hall system

  title={Effect of surface disorder on the chiral surface states of a three-dimensional quantum Hall system},
  author={Chaozhi Zheng and Kun Yang and Xin Wan},
  journal={arXiv: Mesoscale and Nanoscale Physics},
We investigate the effect of surface disorder on the chiral surface states of a three-dimensional quantum Hall system. Utilizing a transfer matrix method, we find that the localization length of the surface state along the magnetic field decreases with the disorder strength in the weak disorder regime, but increases anomalously in the strong disorder regime. In the strong disorder regime, the surface states mainly locate at the first inward layer to avoid the strong disorder in the outmost… 
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