Topological Invariants of Metals and the Related Physical Effects

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	Topological Invariants of Metals and the Related Physical Effects
	Zhou, JH ; Jiang, H ; Niu, Q ; Shi, JR
刊名	CHINESE PHYSICS LETTERS
	2013
卷号	30 期号:2
ISSN号	0256-307X
通讯作者	Zhou, JH (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	The total reciprocal space magnetic flux threading through a closed Fermi surface is a topological invariant for a three-dimensional metal. For a Weyl metal, the invariant is nonzero for each of its Fermi surfaces. We show that such an invariant can be related to the magneto-valley-transport effect, in which an external magnetic field can induce a valley current. We further show that a strain field can drive an electric current, and that the effect is dictated by a second-class Chern invariant. These connections open the pathway to observe the hidden topological invariants in metallic systems.
资助信息	National Basic Research Program of China [2009CB929101, 2012CB921304]
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/311004/57610]
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	Zhou, JH,Jiang, H,Niu, Q,et al. Topological Invariants of Metals and the Related Physical Effects[J]. CHINESE PHYSICS LETTERS,2013,30(2).
APA	Zhou, JH,Jiang, H,Niu, Q,&Shi, JR.(2013).Topological Invariants of Metals and the Related Physical Effects.CHINESE PHYSICS LETTERS,30(2).
MLA	Zhou, JH,et al."Topological Invariants of Metals and the Related Physical Effects".CHINESE PHYSICS LETTERS 30.2(2013).