Progress in nonmagnetic impurity doping studies on Fe-based superconductors

doi:10.1088/0953-2048/29/5/053001

	Progress in nonmagnetic impurity doping studies on Fe-based superconductors
	Li, Jun 1,2,3; Guo, Yan-Feng2,4 ; Yang, Zhao-Rong 5,6; Yamaura, Kazunari 2,7; Takayama-Muromachi, Eiji 2; Wang, Hua-Bing 1,2,3; Wu, Pei-Heng 1
	2016-05
发表期刊	SUPERCONDUCTOR SCIENCE & TECHNOLOGY
ISSN	0953-2048
卷号	29 期号:5
发表状态	已发表
DOI	10.1088/0953-2048/29/5/053001
摘要	We review the progress of nonmagnetic impurity doping studies on Fe-based superconductors. On the theoretical side, two highly promising candidates for the pairing symmetry order parameter, i.e. the multi-gap s(++) and s(+/-) wave models, have been proposed but continuously debated. The debate arises because of the complex gap structure and exceptional magnetic and metallic behaviors of Fe-based superconductors, which may vary the influence of nonmagnetic defects in the chemical potential, impurity disorder, inter-and intra-band scattering strength, and electron localization. This creates difficulties in directly obtaining the most important information for understanding the symmetry order parameter. Experimentally, nonmagnetic impurity substitution studies have been widely carried out, which have provided very useful insights. We review herein the various nonmagnetic impurity doping experiments, including the controlled defects within the superconducting Fe2X2 planes through sample quality improvement, single impurity effects on the electronic state and local moment, the magnetic response of the Fe2X2 planes both on the macroscopic scale as the antiferromagnetic state and the local scale of moment, as well as the significant effect of modifying the transport properties. The experiments enable us to qualitatively analyze the nonmagnetic impurity effects on the superconducting state for many Fe-based superconductors. We also propose herein some strategies for nonmagnetic impurity doping study. As an important model for explaining the nonmagnetic impurity doping effects, the pair-breaking model is compared with various theoretical approaches via analysis of the pair-breaking rates of various Fe-superconductors.
关键词	Fe-based superconductor nonmagnetic impurity order parameter pair-breaking
收录类别	SCI ; EI
语种	英语
资助项目	National Key Basic Research of China Grants[2011CBA00111]
WOS研究方向	Physics
WOS类目	Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000375572100003
出版者	IOP PUBLISHING LTD
EI入藏号	20161602245550
EI主题词	Defects ; Quality control ; Semiconductor doping ; Superconducting materials
EI分类号	Superconducting Materials:708.3 ; Semiconducting Materials:712.1 ; Quality Assurance and Control:913.3 ; Materials Science:951
WOS关键词	LAYERED SUPERCONDUCTOR ; ZN-SUBSTITUTION ; IRON ; ANGLE ; TC ; CU ; RELAXATION ; DEPRESSION ; RESONANCE ; SYMMETRY
原始文献类型	Review
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1857
专题	物质科学与技术学院_PI研究组_郭艳峰组
通讯作者	Li, Jun; Guo, Yan-Feng
作者单位	1.Nanjing Univ, Res Inst Superconductor Elect, Nanjing 210093, Peoples R China 2.Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan 3.Cooperat Innovat Ctr Terahertz Sci, Chengdu 610054, Peoples R China 4.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China 5.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China 6.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China 7.Hokkaido Univ, Grad Sch Chem Sci & Engn, Hokkaido 0600810, Japan
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Li, Jun,Guo, Yan-Feng,Yang, Zhao-Rong,et al. Progress in nonmagnetic impurity doping studies on Fe-based superconductors[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2016,29(5).
APA	Li, Jun.,Guo, Yan-Feng.,Yang, Zhao-Rong.,Yamaura, Kazunari.,Takayama-Muromachi, Eiji.,...&Wu, Pei-Heng.(2016).Progress in nonmagnetic impurity doping studies on Fe-based superconductors.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,29(5).
MLA	Li, Jun,et al."Progress in nonmagnetic impurity doping studies on Fe-based superconductors".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 29.5(2016).