Published April 1994 | Version v1
Journal article Metadata-only

Anharmonicity and electron-phonon coupling in cuprate superconductors studied by inelastic neutron scattering

Creators

  • 1. Kernforschungszentrum Karlsruhe (Germany)
  • 2. Universitaet Karlsruhe (Germany)
  • 3. CEA-CNRS, Gif-sur-Yvette (France)
  • 4. DRF/SPh-MDN, Grenoble (France)
  • 5. I.V. Kurchatov Inst. of Atomic Energy, Moscow (Russian Federation)

Description

An overview is given on anharmonic lattice vibrations originating from structural instabilities. The transverse vibrations of the chain oxygens in YBa2Cu3O7 are found to be only moderately anharmonic. Measurements of the phonon linewidths in the Cu-O bond stretching vibrations strongly support recent calculations of the electron-phonon coupling. Results are presented on superconductivity-induced frequency shifts at short wavelengths. 20 refs., 15 figs

Additional details

Publishing Information

Journal Title
Journal of Superconductivity
Journal Volume
7
Journal Issue
2
Journal Page Range
p. 399-407.
ISSN
0896-1107
CODEN
JOUSEH

Conference

Title
Physics and chemistry of molecular and oxide superconductors conference.
Dates
27-31 Jul 1993.
Place
Eugene, OR (United States).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
26036696
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANHARMONIC CRYSTALS; BARIUM OXIDES; CERAMICS; CUPRATES; ELECTRON-PHONON COUPLING; HIGH-TC SUPERCONDUCTORS; LATTICE VIBRATIONS; NEUTRONS; SCATTERING; VIBRATIONAL STATES; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; BARYONS; CHALCOGENIDES; COPPER COMPOUNDS; COUPLING; CRYSTALS; ELEMENTARY PARTICLES; ENERGY LEVELS; EXCITED STATES; FERMIONS; HADRONS; NUCLEONS; OXIDES; OXYGEN COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS

Optional Information

Secondary number(s)
CONF-930710--.