Published June 9, 2006 | Version v1
Journal article Metadata-only

Momentum-Resolved Electron-Phonon Interaction in Lead Determined by Neutron Resonance Spin-Echo Spectroscopy

Creators

  • 1. ZWE FRMII, Technical University of Munich, Lichtenbergstrasse 1, D-85748 Garching (Germany)
  • 2. Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstrasse 1, D-70569 Stuttgart (Germany)
  • 3. Hahn-Meitner-Institut, Glienicker Strasse 100, D-14109 Berlin (Germany)
  • 4. Brock University, 500 Glenridge Avenue, St. Catharines, Ontario L2S 3A1 (Canada)

Description

Neutron resonance spin-echo spectroscopy was used to monitor the temperature evolution of the linewidths of transverse acoustic phonons in lead across the superconducting transition temperature Tc over an extended range of the Brillouin zone. For phonons with energies below the superconducting energy gap, a linewidth reduction of maximum amplitude ∼6 μeV was observed below Tc. The electron-phonon contribution to the phonon lifetime extracted from these data is in satisfactory overall agreement with ab initio lattice-dynamical calculations, but significant deviations are found

Additional details

Identifiers

DOI
10.1103/PhysRevLett.96.225501;
arXiv
arXiv:cond-mat/0606816v1;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
96
Journal Issue
22
Journal Page Range
p. 225501-225501.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37081473
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
BRILLOUIN ZONES; ELECTRON-PHONON COUPLING; ELECTRONS; ENERGY GAP; EVOLUTION; LIFETIME; LINE WIDTHS; NEUTRONS; NUCLEAR MAGNETIC RESONANCE; PHONONS; SPECTROSCOPY; SPIN ECHO; TRANSITION TEMPERATURE
Descriptors DEC
BARYONS; COUPLING; ELEMENTARY PARTICLES; FERMIONS; HADRONS; LEPTONS; MAGNETIC RESONANCE; NUCLEONS; PHYSICAL PROPERTIES; QUASI PARTICLES; RESONANCE; THERMODYNAMIC PROPERTIES; ZONES

Optional Information

Notes
(c) 2006 The American Physical Society