Finite size effects on the quantum spin Hall state in HgTe quantum wells under two different types of boundary conditions
Cheng Zhi, Chen Rui, Zhou Bin†
Finite size effects on the quantum spin Hall state in HgTe quantum wells under two different types of boundary conditions |
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Cheng Zhi, Chen Rui, Zhou Bin†
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| Density distributions of the spin-up edge states in the HgTe QW with an asymmetric geometry at k x = 0. (a) The case corresponding to Dirac point indicted by arrow 3 in Fig. 8 ; (b) The case to Dirac point indicted by arrow 4. Here the strengths R and Δ are assumed to be zero, the width L of the TI region is 1000 nm, and the width W of the NI region is 100 nm. |
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