Far-infrared measurements of Holstein processes and low-energy. cap alpha. /sup 2//sub tr/ F (. omega. ) structure in V/sub 3/Si

Journal Article · Fri Jun 01 04:00:00 EDT 1979 · Phys. Rev., B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.19.5689· OSTI ID:6260447

McKnight, S W; Perkowitz, S; Tanner, D B; Testardi, L R

Far-infrared measurements in thin films of V/sub 3/Si at 19 K give evidence of Holstein processes. An analysis according to Allen's formulation yields a transport electron-phonon spectral function ..cap alpha../sup 2//sub tr/F (..omega..) which is enhanced at low energies relative to the phonon spectrum alone and exhibits a new peak at 6( +- 2) MeV. The enhancement and structure strongly influence calculated values of T/sub c/ and the electron-phonon parameter lambda/sub tr/ for V/sub 3/Si. The Holstein analysis resolves a large discrepancy between far-infrared and near-infrared values for the plasma frequency.

• Research Organization: Physics Department, Emory University, Atlanta, Georgia 30322
• OSTI ID: 6260447
• Journal Information: Phys. Rev., B: Condens. Matter; (United States), Journal Name: Phys. Rev., B: Condens. Matter; (United States) Journal Issue: 11 Vol. 19:11; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRON-PHONON COUPLING
FAR INFRARED RADIATION
FILMS
FUNCTIONS
INFRARED RADIATION
INFRARED SPECTRA
PHYSICAL PROPERTIES
RADIATIONS
SILICIDES
SILICON COMPOUNDS
SPECTRA
SPECTRAL FUNCTIONS
SUPERCONDUCTIVITY
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM SILICIDES