Three-dimensional Dirac semimetal and quantum transport in Cd3As2

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	Three-dimensional Dirac semimetal and quantum transport in Cd3As2
	Wang, ZJ ; Weng, HM ; Wu, QS ; Dai, X ; Fang, Z
刊名	PHYSICAL REVIEW B
	2013
卷号	88 期号:12
ISSN号	1098-0121
通讯作者	Wang, ZJ (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	Based on the first-principles calculations, we recover the silent topological nature of Cd3As2, a well known semiconductor with high carrier mobility. We find that it is a symmetry-protected topological semimetal with a single pair of three-dimensional (3D) Dirac points in the bulk and nontrivial Fermi arcs on the surfaces. It can be driven into a topological insulator and a Weyl semimetal state by symmetry breaking, or into a quantum spin Hall insulator with a gap more than 100 meV by reducing dimensionality. We propose that the 3D Dirac cones in the bulk of Cd3As2 can support sizable linear quantum magnetoresistance even up to room temperature.
资助信息	NSF of China; 973 program of China [2011CBA00108, 2013CBP21700]
语种	英语
公开日期	2014-01-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57598]
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	Wang, ZJ,Weng, HM,Wu, QS,et al. Three-dimensional Dirac semimetal and quantum transport in Cd3As2[J]. PHYSICAL REVIEW B,2013,88(12).
APA	Wang, ZJ,Weng, HM,Wu, QS,Dai, X,&Fang, Z.(2013).Three-dimensional Dirac semimetal and quantum transport in Cd3As2.PHYSICAL REVIEW B,88(12).
MLA	Wang, ZJ,et al."Three-dimensional Dirac semimetal and quantum transport in Cd3As2".PHYSICAL REVIEW B 88.12(2013).