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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| The variation of the energy gap E g with the width L of the TI strip region for different width W of the NI region in a symmetry geometry. The black circle symbol corresponds to the case of W = 0, the blue triangle symbol to the width W = 10 nm, the purple inverted triangle symbol to the width W = 20 nm, and the red square symbol to the width W = 100 nm. Here it is assumed that Δ = 1.6 meV and R = 0. |
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