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| Progress in nonmagnetic impurity doping studies on Fe-based superconductors | |
| 2016-05 | |
| Source Publication | SUPERCONDUCTOR SCIENCE & TECHNOLOGY
 |
| ISSN | 0953-2048 |
| Volume | 29Issue:5 |
| Status | 已发表 |
| DOI | 10.1088/0953-2048/29/5/053001 |
| Abstract | 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. |
| Keyword | Fe-based superconductor nonmagnetic impurity order parameter pair-breaking |
| Indexed By | SCI ; EI |
| Language | 英语 |
| Funding Project | National Key Basic Research of China Grants[2011CBA00111] |
| WOS Research Area | Physics |
| WOS Subject | Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000375572100003 |
| Publisher | IOP PUBLISHING LTD |
| EI Accession Number | 20161602245550 |
| EI Keywords | Defects ; Quality control ; Semiconductor doping ; Superconducting materials |
| EI Classification Number | Superconducting Materials:708.3 ; Semiconducting Materials:712.1 ; Quality Assurance and Control:913.3 ; Materials Science:951 |
| WOS Keyword | LAYERED SUPERCONDUCTOR ; ZN-SUBSTITUTION ; IRON ; ANGLE ; TC ; CU ; RELAXATION ; DEPRESSION ; RESONANCE ; SYMMETRY |
| Original Document Type | Review |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1857 |
| Collection | 物质科学与技术学院_PI研究组_郭艳峰组 |
| Corresponding Author | Li, Jun; Guo, Yan-Feng |
| Affiliation | 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 |
| Corresponding Author Affilication | School of Physical Science and Technology |
| Recommended Citation 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). |
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