662 citations · 1.8k across the 24 of their papers we have counts for
4 papers · 1 filter
Quantum Spin Hall Effect and Topologically Invariant Chern Numbers
D. N. Sheng, Z. Y. Weng, L. Sheng +1
We present a topological description of quantum spin Hall effect (QSHE) in a two-dimensional electron system on honeycomb lattice with both intrinsic and Rashba spin-orbit coupling…
Quantum Hall Effect of Dirac Fermions in Graphene: Disorder Effect and Phase Diagram
D. N. Sheng, L. Sheng, Z. Y. Weng
We numerically study the interplay of band structure, topological invariant and disorder effect in two-dimensional electron system of graphene in a magnetic field. Two \emph{distin…
Numerical Study of the Spin Hall Conductance in the Luttinger Model
W. Q. Chen, Z. Y. Weng, D. N. Sheng
We present first numerical studies of the disorder effect on the recently proposed intrinsic spin Hall conductance in a three dimensional (3D) lattice Luttinger model. The results…
Quantum Hall effect at weak magnetic field: New float-up picture
D. N. Sheng, Z. Y. Weng, X. G. Wen
The fate of integer quantum Hall effect (IQHE) at weak magnetic field is studied numerically in the presence of {\it correlated} disorders. We find a systematic {\it float-up} and…