Calorimetric and resistive measurements of amorphous ''splat cooled'' La/sub 1-x/Ga/sub x/ foils
Journal Article
·
· Phys. Rev., B: Solid State; (United States)
The heat capacities, transition temperatures, electrical resistivities, and upper critical fields have been measured for a series of La/sub 1-x/Ga/sub x/ alloys with x = 0.16--x = 0.28. Values of the Debye temperature, density of states, and electron-phonon coupling constant have been determined from these measurements. Superconductivity in this amorphous system is of the intermediate-coupling nature with lambda approx. = 0.8 and the ratio of the nonphonon-renormalized density of states to that of the free-electron model is N/sub ..gamma../(0)/(1 + lambda) N/sub FE/ approx. = 2.2. Specific-heat data as a function of concentration suggest a change in short-range order for x between 0.22 and 0.26.
- Research Organization:
- Texas AM University, College Station, Texas 77843
- OSTI ID:
- 6604146
- Journal Information:
- Phys. Rev., B: Solid State; (United States), Journal Name: Phys. Rev., B: Solid State; (United States) Vol. 18:7; ISSN PLRBA
- 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
COOLING
COUPLING CONSTANTS
CRITICAL FIELD
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GALLIUM ALLOYS
LANTHANUM ALLOYS
MAGNETIC FIELDS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SPECIFIC HEAT
SPLAT COOLING
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
TYPE-II SUPERCONDUCTORS
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
COOLING
COUPLING CONSTANTS
CRITICAL FIELD
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GALLIUM ALLOYS
LANTHANUM ALLOYS
MAGNETIC FIELDS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SPECIFIC HEAT
SPLAT COOLING
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
TYPE-II SUPERCONDUCTORS