Surface Nucleation and Boundary Conditions in Superconductors
H. J. FinkAtomics International, A Division of North American Rockwell Corporation, Canoga Park, California 91304W. C. H. JoinerAtomics International, A Division of North American Rockwell Corporation, Canoga Park, California 91304
1969en
ABI
Abstract
We have calculated the surface nucleation field as a function of the slope of the superconducting order parameter at the surface of a semi-infinite superconducting half-space. When the order parameter increases on approaching the surface, as would be the case in the presence of a surface region of enhanced transition temperature, nucleation fields larger than those expected for a uniform sample are predicted. Cold working the surface on an InBi foil produces this condition and qualitatively confirms the prediction.
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Cited by 20 references