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arxiv: cond-mat/9806266 · v1 · pith:STJORQG4new · submitted 1998-06-23 · ❄️ cond-mat.supr-con · cond-mat.str-el

Suppression of Superconductivity in UPt₃ Single Crystals

J.B. Kycia , J.I. Hong , M.J. Graf , J.A. Sauls , D.N. Seidman , W.P. Halperin (Northwestern University) This is my paper
classification ❄️ cond-mat.supr-con cond-mat.str-el
keywords transitionanisotropiccrystalsdefectssinglesuperconductingsuppressiontemperature
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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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