Heat capacity of superconducting La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4/
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
The heat capacity has been obtained for a sample of La/sub 1.85/Sr/sub 0.15/CuO/sub 4/ which is superconducting with a transition temperature T/sub c/ = 31 K. Although the heat capacity is dominated by the lattice in the vicinity of T/sub c/, it has nonetheless been possible to observe the superconducting transition, thus verifying that this is bulk superconductivity. A lower limit is established for the heat-capacity anomaly of ..delta..C/T/sub c/ = (20 +- 5) mJ/mole K/sup 2/. Combined with estimates of the electronic heat capacity ..gamma.., this leads to 2less than or equal to..delta..C/..gamma..T/sub c/less than or equal to10, compared with the Bardeen-Cooper-Schrieffer value of 1.43, which places this material well into the strong-coupling regime.
- Research Organization:
- Argonne National Laboratory, Argonne, Illinois 60439
- OSTI ID:
- 6878069
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 35:13; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Low-temperature specific heat of La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4/ and La/sub 2/CuO/sub 4/
Thermodynamic and other properties of La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4/
Surface impedance measurements in La/sub 1. 8/Ba/sub 0. 2/CuO/sub 4-//sub y/
Journal Article
·
Sat Oct 01 00:00:00 EDT 1988
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6781667
Thermodynamic and other properties of La/sub 1. 85/Sr/sub 0. 15/CuO/sub 4/
Journal Article
·
Tue Sep 01 00:00:00 EDT 1987
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6254775
Surface impedance measurements in La/sub 1. 8/Ba/sub 0. 2/CuO/sub 4-//sub y/
Journal Article
·
Mon Jun 01 00:00:00 EDT 1987
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:5905467
Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
INFORMATION
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SPECIFIC HEAT
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
INFORMATION
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SPECIFIC HEAT
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE