Superconducting gaps via Raman scattering in iron superconductors

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	Superconducting gaps via Raman scattering in iron superconductors
	Setty, C ; Hu, JP
刊名	PHYSICAL REVIEW B
	2014
卷号	89 期号:18
ISSN号	1098-0121
通讯作者	Setty, C (reprint author), Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA.
中文摘要	We investigate the nonresonant Raman response for iron-based superconductors using the framework of an effective S-4 model that was recently proposed to capture the essential electronic and magnetic properties of iron-based superconductors. We compute the momentum matrix elements and the resulting Raman vertices exactly for different polarization geometries and find that a simple cos k(x) cos k(y) superconducting gap function is in good agreement with experimental data measured in both iron pnictides and iron chalcogenides. The Raman peaks are also matched quantitatively with the measured superconducting gaps by other experimental techniques. The result strengthens the validity of the S-4 model and the dominance of the s-wave pairing for iron-based superconductors.
资助信息	Ministry of Science and Technology of China 973 program [2012CB821400]; NSFC; Strategic Priority Research Program of CAS [XDB07000000]; KAU
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59538]
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	Setty, C,Hu, JP. Superconducting gaps via Raman scattering in iron superconductors[J]. PHYSICAL REVIEW B,2014,89(18).
APA	Setty, C,&Hu, JP.(2014).Superconducting gaps via Raman scattering in iron superconductors.PHYSICAL REVIEW B,89(18).
MLA	Setty, C,et al."Superconducting gaps via Raman scattering in iron superconductors".PHYSICAL REVIEW B 89.18(2014).