Iron-Based Superconductors as Odd-Parity Superconductors

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	Iron-Based Superconductors as Odd-Parity Superconductors
	Hu, JP
刊名	PHYSICAL REVIEW X
	2013
卷号	3 期号:3
ISSN号	2160-3308
通讯作者	Hu, JP (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	Parity is a fundamental quantum number used to classify a state of matter. Materials rarely possess ground states with odd parity. We show that the superconducting state in iron-based superconductors is classified as an odd-parity s-wave spin-singlet pairing state in a single trilayer FeAs/Se, the building block of the materials. In a low-energy effective model constructed on the Fe square bipartite lattice, the superconducting order parameter in this state is a combination of an s-wave normal pairing between two sublattices and an s-wave eta pairing within the sublattices. The state has a fingerprint with a real-space sign inversion between the top and bottom As/Se layers. The results suggest that iron-based superconductors are a new quantum state of matter, and the measurement of the odd parity can help to establish high-temperature superconducting mechanisms.
资助信息	Ministry of Science and Technology of China 973 program [2012CB821400]; [NSFC-1190024]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/57138]
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	Hu, JP. Iron-Based Superconductors as Odd-Parity Superconductors[J]. PHYSICAL REVIEW X,2013,3(3).
APA	Hu, JP.(2013).Iron-Based Superconductors as Odd-Parity Superconductors.PHYSICAL REVIEW X,3(3).
MLA	Hu, JP."Iron-Based Superconductors as Odd-Parity Superconductors".PHYSICAL REVIEW X 3.3(2013).