Topological crystalline insulator PbxSn1-xTe thin films on SrTiO3 (001) with tunable Fermi levels

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	Topological crystalline insulator PbxSn1-xTe thin films on SrTiO3 (001) with tunable Fermi levels
	H. Guo; C. H. Yan; J. W. Liu; Z. Y. Wang; R. Wu; Z. D. Zhang; L. L. Wang; K. He; X. C. Ma; S. H. Ji; W. H. Duan; X. Chen; Q. K. Xue
	2014
发表期刊	Apl Materials
ISSN	2166-532X
卷号	2 期号:5
摘要	In this letter, we report a systematic study of topological crystalline insulator PbxSn1-xTe (0 < x < 1) thin films grown by molecular beam epitaxy on SrTiO3(001). Two domains of PbxSn1-xTe thin films with intersecting angle of alpha approximate to 45 degrees. were confirmed by reflection high energy diffraction, scanning tunneling microscopy, and angle-resolved photoemission spectroscopy (ARPES). ARPES study of PbxSn-1Te thin films demonstrated that the Fermi level of PbTe could be tuned by altering the temperature of substrate whereas SnTe cannot. An M-shaped valance band structure was observed only in SnTe but PbTe is in a topological trivial state with a large gap. In addition, co-evaporation of SnTe and PbTe results in an equivalent variation of Pb concentration as well as the Fermi level of PbxSn1-xTe thin films. (C) 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
部门归属	[guo, hua ; yan, chen-hui ; liu, jun-wei ; wang, zhen-yu ; wu, rui ; ji, shuai-hua ; duan, wen-hui ; chen, xi ; xue, qi-kun] tsinghua univ, dept phys, state key lab low dimens quantum phys, beijing 100084, peoples r china. [yan, chen-hui ; zhang, zhi-dong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [wang, li-li ; he, ke ; ma, xu-cun] chinese acad sci, inst phys, beijing 100190, peoples r china. ; guo, h (reprint author), tsinghua univ, dept phys, state key lab low dimens quantum phys, beijing 100084, peoples r china. ; xc@mail.tsinghua.edu.cn ; qkxue@mail.tsinghua.edu.cn
关键词	Experimental Realization Bi2te3 Snte Bi2se3 Phase Limit
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72849
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Guo,C. H. Yan,J. W. Liu,et al. Topological crystalline insulator PbxSn1-xTe thin films on SrTiO3 (001) with tunable Fermi levels[J]. Apl Materials,2014,2(5).
APA	H. Guo.,C. H. Yan.,J. W. Liu.,Z. Y. Wang.,R. Wu.,...&Q. K. Xue.(2014).Topological crystalline insulator PbxSn1-xTe thin films on SrTiO3 (001) with tunable Fermi levels.Apl Materials,2(5).
MLA	H. Guo,et al."Topological crystalline insulator PbxSn1-xTe thin films on SrTiO3 (001) with tunable Fermi levels".Apl Materials 2.5(2014).