Superconducting transition temperature of a paramagnetic material close to magnetic ordering |
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Authors: | Ranjan Chaudhury Sudhanshu S Jha |
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Affiliation: | (1) Tata Institute of Fundamental Research, Homi Bhabha Road, 400 005 Bombay, India |
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Abstract: | An explicit expression for the superconducting transition temperatureT c in a paramagnetic material is derived, when the transition occurs just before a possible magnetic ordering. As first noted by Uspenskii, such a transition may arise from electronic mechanism itself, without the necessary role played by the usual phonon-exchange mechanism. The result is discussed in terms of some recent experimental observations on the binary alloy Y9Co7. |
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Keywords: | Superconductivity magnetic ordering superconducting transition temperature binary alloy electronic mechanism |
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