Dirac semimetal and topological phase transitions in A(3)Bi (A = Na, K, Rb)

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	Dirac semimetal and topological phase transitions in A(3)Bi (A = Na, K, Rb)
	Z. J. Wang; Y. Sun; X. Q. Chen; C. Franchini; G. Xu; H. M. Weng; X. Dai; Z. Fang
	2012
发表期刊	Physical Review B
ISSN	1098-0121
卷号	85 期号:19
摘要	Three-dimensional (3D) Dirac point, where two Weyl points overlap in momentum space, is usually unstable and hard to realize. Here we show, based on the first-principles calculations and effective model analysis, that crystalline A(3)Bi (A = Na, K, Rb) are Dirac semimetals with bulk 3D Dirac points protected by crystal symmetry. They possess nontrivial Fermi arcs on the surfaces and can be driven into various topologically distinct phases by explicit breaking of symmetries. Giant diamagnetism, linear quantum magnetoresistance, and quantum spin Hall effect will be expected for such compounds.
部门归属	[wang, zhijun; xu, gang; weng, hongming; dai, xi; fang, zhong] chinese acad sci, beijing natl lab condensed matter phys, beijing 100190, peoples r china. [wang, zhijun; xu, gang; weng, hongming; dai, xi; fang, zhong] chinese acad sci, inst phys, beijing 100190, peoples r china. [sun, yan; chen, xing-qiu; franchini, cesare] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;wang, zj (reprint author), chinese acad sci, beijing natl lab condensed matter phys, beijing 100190, peoples r china.;hmweng@aphy.iphy.ac.cn; zfang@aphy.iphy.ac.cn
关键词	Electronic-structure Insulator Surface Bi2te3 Cone Hall
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60329
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. J. Wang,Y. Sun,X. Q. Chen,et al. Dirac semimetal and topological phase transitions in A(3)Bi (A = Na, K, Rb)[J]. Physical Review B,2012,85(19).
APA	Z. J. Wang.,Y. Sun.,X. Q. Chen.,C. Franchini.,G. Xu.,...&Z. Fang.(2012).Dirac semimetal and topological phase transitions in A(3)Bi (A = Na, K, Rb).Physical Review B,85(19).
MLA	Z. J. Wang,et al."Dirac semimetal and topological phase transitions in A(3)Bi (A = Na, K, Rb)".Physical Review B 85.19(2012).