Strain-driven onset of nontrivial topological insulating states in Zintl Sr(2)X compounds (X = Pb, Sn)

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	Strain-driven onset of nontrivial topological insulating states in Zintl Sr(2)X compounds (X = Pb, Sn)
	Y. Sun; X. Q. Chen; C. Franchini; D. Z. Li; S. Yunoki; Y. Y. Li; Z. Fang
	2011
发表期刊	Physical Review B
ISSN	1098-0121
卷号	84 期号:16
摘要	We explore the topological behavior of the binary Zintl phase of the alkaline-earth-metal-based compounds Sr(2)Pb and Sr(2)Sn using both standard and hybrid density functional theory. It is found that Sr(2)Pb 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 Sr(2)Pb(010) surface, whose evolution is studied as a function of the film thickness.
部门归属	[sun, yan; chen, xing-qiu; franchini, cesare; li, dianzhong; li, yiyi] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [franchini, cesare] univ vienna, ctr computat mat sci, a-1090 vienna, austria. [yunoki, seiji] riken asi, computat condensed matter phys lab, wako, saitama 3510198, japan. [yunoki, seiji] japan sci & technol agcy jst, crest, kawaguchi, saitama 3320012, japan. [yunoki, seiji] riken aics, computat mat sci res team, wako, hyogo 6500047, japan. [fang, zhong] chinese acad sci, beijing natl lab condensed matter phys, inst phys, beijing 100081, peoples r china.;chen, xq (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;xingqiu.chen@imr.ac.cn
关键词	Hgte Quantum-wells Single Dirac Cone Transition Surface Metals Bi2te3 Phase
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30692
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Sun,X. Q. Chen,C. Franchini,et al. Strain-driven onset of nontrivial topological insulating states in Zintl Sr(2)X compounds (X = Pb, Sn)[J]. Physical Review B,2011,84(16).
APA	Y. Sun.,X. Q. Chen.,C. Franchini.,D. Z. Li.,S. Yunoki.,...&Z. Fang.(2011).Strain-driven onset of nontrivial topological insulating states in Zintl Sr(2)X compounds (X = Pb, Sn).Physical Review B,84(16).
MLA	Y. Sun,et al."Strain-driven onset of nontrivial topological insulating states in Zintl Sr(2)X compounds (X = Pb, Sn)".Physical Review B 84.16(2011).

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