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Weak localization in superconductors: A study of radiation-damaged Nb_3Ir

Gray, K. E. and Kampwirth, R. T. and Rosenbaum, T. F. and Field, Stuart B. and Muttalib, K. A. (1987) Weak localization in superconductors: A study of radiation-damaged Nb_3Ir. Physical Review B, 35 (16). pp. 8405-8412. ISSN 1098-0121. doi:10.1103/PhysRevB.35.8405.

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We have studied the critical temperature T_c, upper critical field, and magnetotransport variation as a function of radiation damage in the low-T_c A15 superconductor Nb_3Ir. We find a nonmonotonic variation in Tc with disorder and analyze these results in terms of the competition between density-of-states effects and weak localization. Magnetoresistance measurements confirm the presence of electron interaction effects associated with weak localization.

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Alternate Title:Weak localization in superconductors: A study of radiation-damaged Nb3Ir
Additional Information:© 1987 The American Physical Society. Received 27 January 1986; revised manuscript received 29 December 1986. We would like to thank H. Fukuyama, P. A. Lee, M. Tachiki, D. W. Capone II, and J. Poon for helpful conversations. The authors thank Alex Braginski for supplying the single crystal of Nb_3Ir, which was made by Dr. E. Walker, and also D. S. Gemmell and B. J. Zabransky for the use and operation of the Dynamitron radiation facility. The work at Argonne was supported by the U.S. Department of Energy, BES-Materials Sciences, under Contract No. W-31-109-ENG-38, the work at The University of Chicago was supported by the National Science Foundation Materials Research Laboratory under Grant No. 82-16892, and the work at Brookhaven was supported by the Division of Materials Sciences, U.S. Department of Energy under Contract No. DE-AC02-76CH00016. One of us (T.F.R.) acknowledges support from the Alfred P. Sloan Foundation.
Funding AgencyGrant Number
Department of Energy (DOE)W-31-109-ENG-38
Department of Energy (DOE)DE-AC02-76CH00016
Alfred P. Sloan FoundationUNSPECIFIED
Issue or Number:16
Record Number:CaltechAUTHORS:20140707-163039999
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47033
Deposited By: George Porter
Deposited On:09 Jul 2014 14:37
Last Modified:10 Nov 2021 17:33

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