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)
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
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
AMORPHOUS STATE
BCS THEORY
CALORIMETRY
COPPER ALLOYS
CRITICAL FIELD
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
INFORMATION
KONDO EFFECT
LOW TEMPERATURE
MAGNETIC FIELDS
MATHEMATICAL MODELS
MEDIUM TEMPERATURE
NICKEL ALLOYS
NUCLEAR MODELS
NUMERICAL DATA
PHYSICAL PROPERTIES
RELAXATION
SPUTTERING
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TYPE-II SUPERCONDUCTORS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
WEAK-COUPLING MODEL
ZIRCONIUM ALLOYS
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
AMORPHOUS STATE
BCS THEORY
CALORIMETRY
COPPER ALLOYS
CRITICAL FIELD
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
INFORMATION
KONDO EFFECT
LOW TEMPERATURE
MAGNETIC FIELDS
MATHEMATICAL MODELS
MEDIUM TEMPERATURE
NICKEL ALLOYS
NUCLEAR MODELS
NUMERICAL DATA
PHYSICAL PROPERTIES
RELAXATION
SPUTTERING
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TYPE-II SUPERCONDUCTORS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
WEAK-COUPLING MODEL
ZIRCONIUM ALLOYS