Zhou L, Kou L, Sun Y, Felser C, Hu F, Shan G, Smith SC, Yan B, Frauenheim T (2015)
Publication Type: Journal article
Publication year: 2015
Book Volume: 15
Pages Range: 7867-7872
Journal Issue: 12
DOI: 10.1021/acs.nanolett.5b02617
Topological insulators (TIs) are promising for achieving dissipationless transport devices due to the robust gapless states inside the insulating bulk gap. However, currently realized two-dimensional (2D) TIs, quantum spin Hall (QSH) insulators, suffer from ultrahigh vacuum and extremely low temperature. Thus, seeking for desirable QSH insulators with high feasibility of experimental preparation and large nontrivial gap is of great importance for wide applications in spintronics. On the basis of the first-principles calculations, we predict a novel family of 2D QSH insulators in transition-metal halide MX (M = Zr, Hf; X = Cl, Br, and I) monolayers, especially, which is the first case based on transition-metal halide-based QSH insulators. MX family has the large nontrivial gaps of 0.12-0.4 eV, comparable with bismuth (111) bilayer (0.2 eV), stanene (0.3 eV), and larger than ZrTe
APA:
Zhou, L., Kou, L., Sun, Y., Felser, C., Hu, F., Shan, G.,... Frauenheim, T. (2015). New family of quantum spin hall insulators in two-dimensional transition-metal halide with large nontrivial band gaps. Nano Letters, 15(12), 7867-7872. https://doi.org/10.1021/acs.nanolett.5b02617
MLA:
Zhou, Liujiang, et al. "New family of quantum spin hall insulators in two-dimensional transition-metal halide with large nontrivial band gaps." Nano Letters 15.12 (2015): 7867-7872.
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