Abstract
The fluctuation conductivity above the transition temperatureT c is calculated in a superconducting proximity sandwich containing magnetic impurities. The calculations are carried out in the framework of the Kaiser-Zuckermann theory based on the McMillan tunneling model, under the condition τS,N T c≪1, where τS,N are the lifetimes of electrons associated with the tunneling process. The role of the proximity effect is to suppress the fluctuation conductivity by renormalizing the coefficients of the Aslamazov-Larkin and Maki-Thompson terms, and the third term. On the other hand, magnetic impurities affect mostly the Maki-Thompson contribution via the pair-breaking parameter, which is derived as a quantity depending on τS,N, the spin-flip lifetime, and temperature.
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References
L. G. Aslamazov and A. I. Larkin,Fiz. Tverd. Tela. 10, 1104 (1968) [Sov. Phys.—Solid State 10, 875 (1968)].
K. Maki,Progr. Theor. Phys. 39, 897 (1968);40, 193 (1968).
R. S. Thompson,Phys. Rev. B 1, 327 (1970).
J. Keller and V. Korenman,Phys. Rev. Lett. 27, 1270 (1971);Phys. Rev. B 5, 4367 (1972).
B. R. Patton,Phys. Rev. Lett. 27, 1273 (1971).
K. Kajimura and N. Mikoshiba,J. Low Temp. Phys. 4, 331 (1971).
K. Okamoto,J. Phys. Soc. Japan 42, 1136 (1977).
O. Entin-Wohlman and R. Orbach, inProc. 14th Int. Conf. Low Temp. Phys., M. Krusius and M. Vuorio, eds. (North-Holland, Amsterdam, 1975), Vol. 2, p. 391.
O. Entin-Wohlman,Phys. Rev. B 14, 274 (1976).
P. G. de Gennes,Rev. Mod. Phys. 36, 225 (1964).
W. L. McMillan,Phys. Rev. 175, 537 (1968).
F. Aspen and A. M. Goldman,Phys. Rev. B 22, 3508 (1980).
A. B. Kaiser and M. J. Zuckermann,Phys. Rev. B 1, 229 (1970).
A. A. Abrikosov and L. P. Gor'kov,Zh. Eksp. Teor. Fiz. 39, 1781 (1960) [Sov. Phys.—JETP 12, 1243 (1961)].
G. Deutscher and O. Entin-Wohlman,Phys. Rev. B 14, 1002 (1976).
W. Haberkorn and J. Richter,J. Low Temp. Phys. 35, 627 (1979).
E. D. Ramos,Solid State Commun. 15, 1161 (1974).
E. L. Wolf, inSolid State Physics, H. Ehrenreich, F. Seitz, and D. Turnbull, eds. (Academic Press, New York, 1975), Vol. 30, p. 2.
N. Mori,J. Low Temp. Phys. 40, 275 (1980).
C. Caroli and K. Maki,Phys. Rev. 159, 306 (1967).
C. Van Haesendonck, L. Van der Dries, Y. Bruynseraede, and A. Gilabert,Solid State Commun. 35, 805 (1980).
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Financial support provided by the Post-Doctoral Fellowship Commission in Science and Engineering Research Laboratory, Waseda University.
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Mori, N. Fluctuation conductivity in a superconducting proximity sandwich. J Low Temp Phys 46, 543–553 (1982). https://doi.org/10.1007/BF00683916
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DOI: https://doi.org/10.1007/BF00683916