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Effect of diffusive boundaries on surface superconductivity in unconventional superconductors

D. F. Agterberg, M. B. Walker

DOI 10.1103/PhysRevB.53.15201 · Physical Review B

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Abstract

Boundary conditions for a superconducting order parameter at a diffusive scattering boundary are derived from microscopic theory. The results indicate that for all but isotropic gap functions the diffusive boundary almost completely suppresses surface superconductivity in the Ginzburg-Landau regime. This indicates that in anisotropic superconductors surface superconductivity can only be observed for surface normals along high-symmetry directions where atomically clean surfaces can be cleaved. © 1996 The American Physical Society.

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UPt3

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—Pressure not reportedunknown

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