Physics – Condensed Matter – Superconductivity
Scientific paper
1998-06-23
Physical Review B 58, R603 (1998)
Physics
Condensed Matter
Superconductivity
4 pages, 4 figures in postscript. To appear in Phys. Rev. B 58 (July 1, 1998)
Scientific paper
10.1103/PhysRevB.58.R603
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.
Graf Matthias. J.
Halperin W. P.
Hong J. I.
Kycia Jan B.
Sauls J. A.
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