New Fe-based superconductors: properties relevant for applications

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	New Fe-based superconductors: properties relevant for applications
	Putti, M ; Pallecchi, I ; Bellingeri, E ; Cimberle, MR ; Tropeano, M ; Ferdeghini, C ; Palenzona, A ; Tarantini, C ; Yamamoto, A ; Jiang, J ; Jaroszynski, J ; Kametani, F ; Abraimov, D ; Polyanskii, A ; Weiss, JD ; Hellstrom, EE ; Gurevich, A ; Larbalestier, DC ; Jin, R ; Sales, BC ; Sefat, AS ; McGuire, MA ; Mandrus, D ; Cheng, P ; Jia, Y ; Wen, HH ; Lee, S ; Eom, CB
刊名	SUPERCONDUCTOR SCIENCE & TECHNOLOGY
	2010
卷号	23 期号:3
关键词	CRITICAL CURRENTS SINGLE-CRYSTALS FIELD DEPENDENCE
ISSN号	0953-2048
通讯作者	Putti, M (reprint author), CNR INFM LAMIA, Via Dodecaneso 33, I-16146 Genoa, Italy.
中文摘要	Less than two years after the discovery of high temperature superconductivity in oxypnictide LaFeAs(O, F) several families of superconductors based on Fe layers (1111, 122, 11, 111) are available. They share several characteristics with cuprate superconductors that compromise easy applications, such as the layered structure, the small coherence length and unconventional pairing. On the other hand, the Fe-based superconductors have metallic parent compounds and their electronic anisotropy is generally smaller and does not strongly depend on the level of doping, and the supposed order parameter symmetry is s-wave, thus in principle not so detrimental to current transmission across grain boundaries. From the application point of view, the main efforts are still devoted to investigate the superconducting properties, to distinguish intrinsic from extrinsic behaviors and to compare the different families in order to identify which one is the fittest for the quest for better and more practical superconductors. The 1111 family shows the highest T(c), huge but also the most anisotropic upper critical field and in-field, fan-shaped resistive transitions reminiscent of those of cuprates. On the other hand, the 122 family is much less anisotropic with sharper resistive transitions as in low temperature superconductors, but with about half the T(c) of the 1111 compounds. An overview of the main superconducting properties relevant to applications will be presented. Upper critical field, electronic anisotropy parameter, and intragranular and intergranular critical current density will be discussed and compared, where possible, across the Fe-based superconductor families.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/49844]
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	Putti, M,Pallecchi, I,Bellingeri, E,et al. New Fe-based superconductors: properties relevant for applications[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2010,23(3).
APA	Putti, M.,Pallecchi, I.,Bellingeri, E.,Cimberle, MR.,Tropeano, M.,...&Eom, CB.(2010).New Fe-based superconductors: properties relevant for applications.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,23(3).
MLA	Putti, M,et al."New Fe-based superconductors: properties relevant for applications".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 23.3(2010).