c-axis nodal lines induced by interlayer pairing in iron-based superconductors

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	c-axis nodal lines induced by interlayer pairing in iron-based superconductors
	Su, YH ; Setty, C ; Wang, ZQ ; Hu, JP
刊名	PHYSICAL REVIEW B
	2012
卷号	85 期号:18
关键词	BA0.6K0.4FE2AS2 GAP
ISSN号	1098-0121
通讯作者	Su, YH: Yantai Univ, Dept Phys, Yantai 264005, Peoples R China.
中文摘要	A layered superconductor with a full pairing energy gap can be driven into a nodal superconducting (SC) state by interlayer pairing when the SC state becomes more quasi-three-dimensional. We propose that this mechanism is responsible for the observed nodal behavior in a class of iron-based SCs. We show that the intra-and interlayer pairings generally compete and the gap nodes develop on one of the hole Fermi surface pockets as they become larger in the iron pnictides. Our results provide a natural explanation of the c-axis gap modulations and gap nodes observed by angle-resolved photoemission spectroscopy. Moreover, we predict that an anticorrelated c-axis gap modulation on the hole and electron pockets should be observable in the S-+/--wave pairing state.
收录类别	SCI
资助信息	National Natural Science Foundation of China [10974167]; US Department of Energy [DE-FG02-99ER45747]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/34525]
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	Su, YH,Setty, C,Wang, ZQ,et al. c-axis nodal lines induced by interlayer pairing in iron-based superconductors[J]. PHYSICAL REVIEW B,2012,85(18).
APA	Su, YH,Setty, C,Wang, ZQ,&Hu, JP.(2012).c-axis nodal lines induced by interlayer pairing in iron-based superconductors.PHYSICAL REVIEW B,85(18).
MLA	Su, YH,et al."c-axis nodal lines induced by interlayer pairing in iron-based superconductors".PHYSICAL REVIEW B 85.18(2012).