Re-entrant superconductivity from magnetic impurity interactions |
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| Authors: | J Ruvalds Fu-sui Liu |
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| Institution: | Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106, U.S.A.;Department of Physics, University of Virginia, Charlottesville,VA 22901, U.S.A. |
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| Abstract: | The scattering of electrons in the superconducting phase is calculated including the exchange of magnetic impurity pairs. Providing that the RKKY coupling favors ferromagnetic alignment of the impurity spins, the superconducting transition temperature is found to exhibit a re-entrant behavior as a function of the impurity concentration. |
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