Evaluation of the electron - phonon interaction and transition temperature in the oxide superconductors
Journal Article
·
· Journal of Superconductivity; (USA)
- Naval Research Lab., Washington, DC (USA)
The Allen-Dynes equation applicable to the oxide superconductors is studied, which shows that for moderate values of the electron-phonon coupling constant the superconducting transition temperature is found in the range of 100 K. This result is based on an approximate evaluation of large values of the McMillan-Hopfield parameter and evidence from frozen-phonon calculations that strong ionic character in the copper oxide superconductors invalidates the rigid muffin-tin approximation.
- OSTI ID:
- 5524888
- Journal Information:
- Journal of Superconductivity; (USA), Journal Name: Journal of Superconductivity; (USA) Vol. 2:2; ISSN 0896-1107; ISSN JOUSE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
COUPLING CONSTANTS
CRYSTALS
ELECTRON-PHONON COUPLING
ENERGY DENSITY
ENERGY LEVELS
EQUATIONS
EXCITED STATES
FERMI LEVEL
FUNCTIONS
IONIC CRYSTALS
LOW TEMPERATURE
MUFFIN-TIN POTENTIAL
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTENTIALS
SCATTERING
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VIBRATIONAL STATES
WAVE FUNCTIONS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
COUPLING CONSTANTS
CRYSTALS
ELECTRON-PHONON COUPLING
ENERGY DENSITY
ENERGY LEVELS
EQUATIONS
EXCITED STATES
FERMI LEVEL
FUNCTIONS
IONIC CRYSTALS
LOW TEMPERATURE
MUFFIN-TIN POTENTIAL
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTENTIALS
SCATTERING
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VIBRATIONAL STATES
WAVE FUNCTIONS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES