Strain-driven onset of nontrivial topological insulating states in Zintl Sr2X compounds (X = Pb, Sn)

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	Strain-driven onset of nontrivial topological insulating states in Zintl Sr2X compounds (X = Pb, Sn)
	Sun, Y ; Chen, XQ ; Franchini, C ; Li, DZ ; Yunoki, S ; Li, YY ; Fang, Z
刊名	PHYSICAL REVIEW B
	2011
卷号	84 期号:16
关键词	HGTE QUANTUM-WELLS SINGLE DIRAC CONE TRANSITION SURFACE METALS BI2TE3 PHASE
ISSN号	1098-0121
通讯作者	Chen, XQ (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China.
中文摘要	We explore the topological behavior of the binary Zintl phase of the alkaline-earth-metal-based compounds Sr2Pb and Sr2Sn using both standard and hybrid density functional theory. It is found that Sr2Pb lies on the verge of a topological instability which can be suitably tuned through the application of a small uniaxial expansion strain (>3%). The resulting nontrivial topologically insulating state displays well-defined metallic states in the Sr2Pb(010) surface, whose evolution is studied as a function of the film thickness.
收录类别	SCI
资助信息	Chinese Academy of Sciences; NSFC of China [51074151, 51174188, 51050110444]; Supercomputing Center of the Chinese Academy of Sciences; 973 program of China [2007CB925000]; HPC cluster in the Materials Process Simulation Division, IMR
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/53119]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Sun, Y,Chen, XQ,Franchini, C,et al. Strain-driven onset of nontrivial topological insulating states in Zintl Sr2X compounds (X = Pb, Sn)[J]. PHYSICAL REVIEW B,2011,84(16).
APA	Sun, Y.,Chen, XQ.,Franchini, C.,Li, DZ.,Yunoki, S.,...&Fang, Z.(2011).Strain-driven onset of nontrivial topological insulating states in Zintl Sr2X compounds (X = Pb, Sn).PHYSICAL REVIEW B,84(16).
MLA	Sun, Y,et al."Strain-driven onset of nontrivial topological insulating states in Zintl Sr2X compounds (X = Pb, Sn)".PHYSICAL REVIEW B 84.16(2011).