Weak Anti-Localization and Quantum Oscillations in Topological Crystalline Insulator PbTe
Ke-Jie Wang, Wei Wang, Min-Hao Zhang, Xiao-Qian Zhang, Pei Yang, Bo Liu, Ming Gao, Da-Wei Huang, Jun-Ran Zhang, Yu-Jie Liu, Xue-Feng Wang, Feng-Qiu Wang, Liang He** , Yong-Bing Xu** , Rong Zhang
Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, Jiangsu Provincial Key Laboratory for Nanotechnology, Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093
Abstract ：Topological crystalline insulators (TCIs) have attracted worldwide interest since their theoretical predication and have created exciting opportunities for studying topological quantum physics and for exploring spintronic applications. In this work, we successfully synthesize PbTe nanowires via the chemical vapor deposition method and demonstrate the existence of topological surface states by their 2D weak anti-localization effect and Shubnikov–de Haas oscillations. More importantly, the surface state contributes $\sim$61% of the total conduction, suggesting dominant surface transport in PbTe nanowires at low temperatures. Our work provides an experimental groundwork for researching TCIs and is a step forward for the applications of PbTe nanowires in spintronic devices.
收稿日期: 2016-10-11
出版日期: 2017-01-25
:
62.23.Hj
(Nanowires)
81.07.Gf
(Nanowires)
61.46.Km
(Structure of nanowires and nanorods (long, free or loosely attached, quantum wires and quantum rods, but not gate-isolated embedded quantum wires))
05.60.Gg
(Quantum transport)
引用本文:
. [J]. 中国物理快报, 2017, 34(2): 26201-026201.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/34/2/026201
或
https://cpl.iphy.ac.cn/CN/Y2017/V34/I2/26201
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2017, Vol. 34 
