Special phonons and superconductivity in the hexagonal tungsten bronzes
Journal Article
·
· Phys. Rev. Lett.; (United States)
Neutron scattering measurements on single crystals of hexagonal tungsten bronzes M/sub 0.33/WO/sub 3/ reveal low-frequency, relatively dispersionless phonon branches which can be associated with the vibrations of the metal atoms M in the large open channels they occupy in the crystal structure. An analysis based on Eliashberg theory shows that the strong dependence of the superconducting transition temperature on the species M arises from these special phonons.
- Research Organization:
- Ames Laboratory-United States Department of Energy and Department of Physics, Iowa State University, Ames, Iowa 50011
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 5775289
- Journal Information:
- Phys. Rev. Lett.; (United States), Vol. 43:21
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
TUNGSTEN OXIDES
TRANSITION TEMPERATURE
DISPERSION RELATIONS
ELECTRON-PHONON COUPLING
GORKOV-ELIASHBERG THEORY
HEXAGONAL LATTICES
INELASTIC SCATTERING
MONOCRYSTALS
NEUTRON DIFFRACTION
PHONONS
POTASSIUM
SUPERCONDUCTIVITY
THALLIUM
VIBRATIONAL STATES
ALKALI METALS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUASI PARTICLES
SCATTERING
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
360104* - Metals & Alloys- Physical Properties
656102 - Solid State Physics- Superconductivity- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
TUNGSTEN OXIDES
TRANSITION TEMPERATURE
DISPERSION RELATIONS
ELECTRON-PHONON COUPLING
GORKOV-ELIASHBERG THEORY
HEXAGONAL LATTICES
INELASTIC SCATTERING
MONOCRYSTALS
NEUTRON DIFFRACTION
PHONONS
POTASSIUM
SUPERCONDUCTIVITY
THALLIUM
VIBRATIONAL STATES
ALKALI METALS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUASI PARTICLES
SCATTERING
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
360104* - Metals & Alloys- Physical Properties
656102 - Solid State Physics- Superconductivity- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena- (-1987)