Surface superconductivity and Hc3 in UPt3

Ding Chuan Chen; Anupam Garg

doi:10.1103/PhysRevB.53.374

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Surface superconductivity and Hc3 in UPt3

Ding Chuan Chen, Anupam Garg

DOI 10.1103/PhysRevB.53.374 · Physical Review B

T1

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Abstract

Surface superconductivity is studied within Ginzburg-Landau theory for two classes of models for the order parameter of UPt3. The first class assumes two independent one-dimensional order parameters (AB models), while the second assumes a single two-dimensional order parameter (E models). Hc3 is calculated for all cases where the surface normal and magnetic field lie along high-symmetry directions. Assuming specular reflection, it is found that except when H∥c^, the ratio Hc3/Hc2 is either unity or equals its ‘‘s-wave’’ value 1.695, although the precise Hc3 vs T curve predicted by the AB and E models differs for various geometries. The results are compared with recent experiments, and predictions are made for future experiments. © 1996 The American Physical Society.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown