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Suppression of Superconductivity in UPt_3 Single Crystals

J. B. Kycia·J. I. Hong·M. J. Graf·J. A. Sauls·D. N. Seidman·W. P. Halperin
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Abstract

High quality single crystals of UPt_3 have been prepared by vertical float-zone refining in ultra-high vacuum. We find that the superconducting transition temperature can be varied systematically by annealing, revealing that the transition temperature intrinsic to UPt_3 is 563 +/- 5 mK. The suppression of the superconducting transition from defects is consistent with a modified Abrikosov-Gor'kov formula that includes anisotropic pairing, Fermi surface anisotropy, and anisotropic scattering by defects.

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J. B. Kycia, J. I. Hong, M. J. Graf, J. A. Sauls, D. N. Seidman, W. P. Halperin. 1998-06-23. Suppression of Superconductivity in UPt_3 Single Crystals. https://doi.org/10.1103/physrevb.58.r603

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