Suppression of the Critical Temperature of Superconducting NdFeAs(OF) Single Crystals by Kondo-Like Defect Sites Induced by alpha-Particle Irradiation

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	Suppression of the Critical Temperature of Superconducting NdFeAs(OF) Single Crystals by Kondo-Like Defect Sites Induced by alpha-Particle Irradiation
	Tarantini, C ; Putti, M ; Gurevich, A ; Shen, Y ; Singh, RK ; Rowell, JM ; Newman, N ; Larbalestier, DC ; Cheng, P ; Jia, Y ; Wen, HH
刊名	PHYSICAL REVIEW LETTERS
	2010
卷号	104 期号:8
ISSN号	0031-9007
通讯作者	Tarantini, C (reprint author), Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
中文摘要	We report the effect of alpha-particle irradiation on the reduction of the critical temperature T-c of a NdFeAs(OF) single crystal. Our data indicate that irradiation defects cause both nonmagnetic and magnetic scattering, resulting in the Kondo-like excess resistance Delta rho(T) proportional to lnT over 2 decades in temperatures above T-c. The critical density of magnetic irradiation defects which suppresses T-c is found to be much higher than those for cuprates and multiband BCS superconductors. We suggest that such anomalously weak pair breaking by irradiation defects indicates that magnetic scattering in pnictides is coupled with pairing interactions mediated by spin fluctuations.
收录类别	SCI
资助信息	NSF [DMR-0084173, PHY05-51164]; state of Florida; AFOSR [FA9550-06-1-0474]
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/311004/54143]
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	Tarantini, C,Putti, M,Gurevich, A,et al. Suppression of the Critical Temperature of Superconducting NdFeAs(OF) Single Crystals by Kondo-Like Defect Sites Induced by alpha-Particle Irradiation[J]. PHYSICAL REVIEW LETTERS,2010,104(8).
APA	Tarantini, C.,Putti, M.,Gurevich, A.,Shen, Y.,Singh, RK.,...&Wen, HH.(2010).Suppression of the Critical Temperature of Superconducting NdFeAs(OF) Single Crystals by Kondo-Like Defect Sites Induced by alpha-Particle Irradiation.PHYSICAL REVIEW LETTERS,104(8).
MLA	Tarantini, C,et al."Suppression of the Critical Temperature of Superconducting NdFeAs(OF) Single Crystals by Kondo-Like Defect Sites Induced by alpha-Particle Irradiation".PHYSICAL REVIEW LETTERS 104.8(2010).