Superconductivity in sputtered CuMo6S8The superconducting transition temperature and the superconducting upper critical fields for sputtered films of copper-containing ternary molybdenum chalcogenides (chevrel phases) were determined. The theory presented by Werthamer, Helfand, and Hohenberg (WHH) (1966) was used to make computer-generated plots of the superconducting upper critical field values versus the superconducting transition temperature values for various values of the Maki paramagnetic pair-breaking parameter and the spin-orbit scattering parameter. The interpretation of the graph suggests that the experimental data for at least one sample are above the maximum WHH theoretical limit in the lower temperature range. Possible explanations of this situation are discussed. In other calculations, a scaling law was found suitable for determining pinning force densities; this data was used to calculate critical current values. The relation between resistivity and temperature was studied.
Document ID
19770049388
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Alterovitz, S. (NASA Lewis Research Center Cleveland, OH, United States)
Woollam, J. A. (NASA Lewis Research Center Cleveland, Ohio, United States)
Kammerdiner, L. (NASA Lewis Research Center Cleveland, OH, United States)
Luo, H.-L. (NASA Lewis Research Center Cleveland, Ohio; California, University, San Diego, Calif., United States)
Martin, C. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 8, 2013
Publication Date
March 1, 1977
Subject Category
Solid-State Physics
Meeting Information
Meeting: General Meeting of the American Physical Society