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Effect of structural relaxation on critical fields H/sub c/ and H/sub c//sub 2/ and on resistivity in sputtered amorphous alloys Zr/sub 76/Cu/sub 24/ and Zr/sub 76/Ni/sub 24/

Journal Article · · J. Low Temp. Phys.; (United States)
DOI:https://doi.org/10.1007/BF00681806· OSTI ID:6368571
We report critical field results on sputtered amorphous Zr/sub 76/Cu/sub 24/ and Zr/sub 76/Ni/sub 24/ alloys. The H/sub c/(T) obtained from calorimetric measurements is well described by assuming that both systems are weak coupling superconductors. A similar good agreement is not found for H/sub c//sub 2/(T) obtained by a resistive method; tentative explanations of this discrepancy are suggested. We also report resistivity measurements in the normal state on Zr/sub 76/Ni/sub 24/ alloys. Results are well interpreted in the framework of the Faber-Ziman diffraction model. An alternative explanation, the Kondo-like model for two-level systems, is also discussed.
Research Organization:
Centre de Recherches sur les Tres Basses Temperatures, CNRS, Grenoble, France
OSTI ID:
6368571
Journal Information:
J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 56:5; ISSN JLTPA
Country of Publication:
United States
Language:
English