Rational Design of Ultralarge Pb1-x Snx Te Nanoplates for Exploring Crystalline Symmetry-Protected Topological Transport.

Wang, Qisheng; Cai, Kaiming; Li, Jie; Huang, Yun; Wang, Zhenxing; Xu, Kai; Wang, Feng; Zhan, Xueying et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

Ultralarge topological crystalline insulator Pb1-x Snx Te nanoplates are developed by controlling substrate surface chemical properties in a cost-efficient chemical vapor deposition (CVD) process. Dominant topological surface transport is demonstrated by a gate-voltage-controlled weak (anti)localization effect, indicating the potential application of these nanoplates to low-dissipation topological transistors.