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Two-dimensional spin-filtered chiral network model for the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="double-struck">Z</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>quantum spin-Hall effect
The effects of static disorder on the ${\mathbb{Z}}_{2}$ quantum spin-Hall effect for noninteracting electrons propagating in two-dimensional space are studied numerically. A two-dimensional time-reversal symmetric network model is constructed to account for the effects of static disorder on the propagation of noninteracting electrons subjected to spin-orbit couplings. This network model …