Distinct Fermi Surface Topology and Nodeless Superconducting Gap in a (Tl0.58Rb0.42)Fe1.72Se2 Superconductor

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	Distinct Fermi Surface Topology and Nodeless Superconducting Gap in a (Tl0.58Rb0.42)Fe1.72Se2 Superconductor
	Mou, DX ; Liu, SY ; Jia, XW ; He, JF ; Peng, YY ; Zhao, L ; Yu, L ; Liu, GD ; He, SL ; Dong, XL ; Zhang, J ; Wang, HD ; Dong, CH ; Fang, MH ; Wang, XY ; Peng, QJ ; Wang, ZM ; Zhang, SJ ; Yang, F ; Xu, ZY ; Chen, CT ; Zhou, XJ
刊名	PHYSICAL REVIEW LETTERS
	2011
卷号	106 期号:10
关键词	IRON SYSTEM
ISSN号	0031-9007
通讯作者	Zhou, XJ: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	High resolution angle-resolved photoemission measurements have been carried out to study the electronic structure and superconducting gap of the (Tl0.58Rb0.42)Fe1.72Se2 superconductor with a T-c = 32 K. The Fermi surface topology consists of two electronlike Fermi surface sheets around the Gamma point which is distinct from that in all other iron-based superconductors reported so far. The Fermi surface around the M point shows a nearly isotropic superconducting gap of similar to 12 meV. The large Fermi surface near the Gamma point also shows a nearly isotropic superconducting gap of similar to 15 meV, while no superconducting gap opening is clearly observed for the inner tiny Fermi surface. Our observed new Fermi surface topology and its associated superconducting gap will provide key insights and constraints into the understanding of the superconductivity mechanism in iron-based superconductors.
收录类别	SCI
资助信息	NSFC [10734120, 10974175]; MOST of China [2011CB921703, 2011CBA00103]
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/311004/36149]
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	Mou, DX,Liu, SY,Jia, XW,et al. Distinct Fermi Surface Topology and Nodeless Superconducting Gap in a (Tl0.58Rb0.42)Fe1.72Se2 Superconductor[J]. PHYSICAL REVIEW LETTERS,2011,106(10).
APA	Mou, DX.,Liu, SY.,Jia, XW.,He, JF.,Peng, YY.,...&Zhou, XJ.(2011).Distinct Fermi Surface Topology and Nodeless Superconducting Gap in a (Tl0.58Rb0.42)Fe1.72Se2 Superconductor.PHYSICAL REVIEW LETTERS,106(10).
MLA	Mou, DX,et al."Distinct Fermi Surface Topology and Nodeless Superconducting Gap in a (Tl0.58Rb0.42)Fe1.72Se2 Superconductor".PHYSICAL REVIEW LETTERS 106.10(2011).