Electron-phonon contribution to the phonon linewidth in Nb: Theory and experiment
Journal Article
·
· Phys. Rev. Lett.; (United States)
We present theoretical calculations and experimental measurements of the phonon linewidth for Nb. The calculations employ the rigid muffin-tin approximation and a realistic band structure. The measurements were done at low temperature to minimize the contributions to the linewidth from phonon-phonon interactions. The calculations predict and experiments confirm strong electron-phonon coupling for the longitudinal phonon modes in the (110) direction.
- Research Organization:
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
- OSTI ID:
- 7208800
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 39:16; ISSN PRLTA
- 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
ELECTRON-PHONON COUPLING
ELEMENTS
FUNCTIONS
LINE WIDTHS
METALS
MUFFIN-TIN POTENTIAL
NIOBIUM
PHONONS
QUASI PARTICLES
REFRACTORY METALS
SPECTRAL FUNCTIONS
SUPERCONDUCTORS
TRANSITION ELEMENTS
TUNNEL EFFECT
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
ELECTRON-PHONON COUPLING
ELEMENTS
FUNCTIONS
LINE WIDTHS
METALS
MUFFIN-TIN POTENTIAL
NIOBIUM
PHONONS
QUASI PARTICLES
REFRACTORY METALS
SPECTRAL FUNCTIONS
SUPERCONDUCTORS
TRANSITION ELEMENTS
TUNNEL EFFECT
TYPE-II SUPERCONDUCTORS