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Angular Dependence of the Upper Critical Field of the Heavy Fermion Superconductor UPt3

N. Keller, J. L. Tholence, A. Huxley, J. Flouquet

DOI 10.1103/PhysRevLett.73.2364 · Physical Review Letters

T1

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Abstract

The angular dependence of the upper critical field Hc2 of UPt3 in magnetic fields up to 0.85 T has been measured. In spark cut single crystals a sixfold modulation of the resistivity is observed at the superconducting transition in the basal plane. This modulation vanishes as the temperature approaches T* temperature of the discontinuity in slope of the Hc2 (T)] and reappears for T<T* but with opposite sign. The results provide important new evidence on the nature of the change in the superconducting order parameter at T* and its possible coupling with the antiferromagnetism.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
UPt3

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

0.508Pressure not reportedunknown
UPt3

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

0.5279Pressure not reportedunknown
UPt3

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

0.5269Pressure not reportedunknown

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