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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| (a) The dependence of the position of Dirac point E d on the width W of the NI region in a symmetry geometry, for the width L of the TI region being 1000 nm; (b) the dependence of energy gap E g of the edge states due to the finite-size effect on the width W of the NI region in a symmetry geometry, for the width L being 200 nm. Here it is assumed that Δ = R = 0. |
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