Surface Structure and Reconstructions of HgTe(111)Surfaces  

作　　者：Xin-Yi Yang Guan-Yong Wang Chen-Xiao Zhao Zhen Zhu Lu Dong Ai-Min Li Yang-Yang Lv Shu-Hua Yao Yan-Bin Chen Dan-Dan Guan Vao-gi Li Hao Zheng Dong Qian Canhua Liu Yu-Lin Chen Jin-Feng Jia 杨心怡;王观勇;赵晨晓;朱朕;董璐;李爱民;吕洋洋;姚淑华;陈延彬;管丹丹;李耀义;郑浩;钱冬;刘灿华;陈宇林;贾金锋(Key Laboratory of Artificial Structures and Quantum Control(Ministry of Education),Department of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240;National Laboratory of Solid State Microstructures&Department of Materials Science and Engineering,Nanjing University,Nanjing 210093;National Laboratory of Solid State Microstructures&Department of Physics,Nanjing University,Nanjing 210093;Clarendon Laboratory,Department of Physics,University of Oxford,Oxford OX1 3PU,UK;Collaborative Innovation Center of Advanced Microstructures,Nanjing 210093)

机构地区：[1]Key Laboratory of Artificial Structures and Quantum Control(Ministry of Education),Department of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240 [2]National Laboratory of Solid State Microstructures&Department of Materials Science and Engineering,Nanjing University,Nanjing 210093 [3]National Laboratory of Solid State Microstructures&Department of Physics,Nanjing University,Nanjing 210093 [4]Clarendon Laboratory,Department of Physics,University of Oxford,Oxford OX1 3PU,UK [5]Collaborative Innovation Center of Advanced Microstructures,Nanjing 210093

出　　处：《Chinese Physics Letters》2018年第2期71-74,共4页中国物理快报(英文版)

基　　金：Supported by the National Key Research and Development Program of China under Grant Nos 2016YFA0301003 and 2016YFA0300403;the National Natural Science Foundation of China under Grant Nos 11521404,11634009,U1632102,11504230,11674222,11574202,11674226,11574201 and U1632272

摘　　要：Hg Te(111)surface is comprehensively studied by scanning tunneling microscopy/spectroscopy(STS).In addition to th√e prim√itive(1×1)√hexagonal lattice,six reconstructed surface structures are observed:(2×2),2×1,4×1,3×(1/2)3,2(1/2)2×2 and(1/2)11×2.The(2×2)reconstructed lattice maintains the primitive hexagonal symmetry,whi√le the lattices of the other five reconstructions are rectangular.Moreover,the topographic features of the3×(1/2)3 reconstruction are bias dependent,indicating that they have both topographic and electronic origins.The STSs obtained at different reconstructed surfaces show a universal dip feature with size~100 mV,which may be attributed to the surface distortion.Our results reveal the atomic structure and complex reconstructions of the cleaved Hg Te(111)surfaces,which paves the way to understand the rich properties of Hg Te crystal.

分 类 号：O485[理学—固体物理]