Published August 1995 | Version v1
Journal article Metadata-only

Phonon anomaly of La1.85Sr0.15CuO4 studied by neutron scattering

Creators

  • 1. Research Development Corporation of Japan, Honcho, Kawaguchi 332 (Japan)
  • 2. Kobe Univ. (Japan). Dept. of Physics
  • 3. Department of Physics, Tohoku University, Aoba, Sendai 980 (Japan)
  • 4. Faculty of Engineering, Yamanashi University, Miyamae, Kohu 400 (Japan)
  • 5. National Laboratory for High Energy Physics, Tsukuba 305 (Japan)

Description

Inelastic neutron-scattering studies were performed on a powder and an assembly of single crystals of La1.85Sr0.15CuO4, Tc∝36 K. Phonon density of states and the Q-dependence of the dynamic structure factor as well, as the details of the phonon-scattering function, were investigated as a function of temperature. We found that specific phonon modes at the Brillouin zone centre and the zone boundary showed anomalous behaviour at Tc. Thus we suggest a strong correlation between the phonon states and the superconducting states. (orig.)

Additional details

Publishing Information

Journal Title
Physica. B, Condensed Matter
Journal Volume
213-214
Journal Issue
1-4
Journal Page Range
p. 75-77.
ISSN
0921-4526
CODEN
PHYBE3

Conference

Title
41. Yamada conference - the international conference on neutron scattering (ICNS-41).
Dates
11-14 Oct 1994.
Place
Sendai (Japan).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
27021676
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BRILLOUIN ZONES; COPPER OXIDES; INELASTIC SCATTERING; LANTHANUM OXIDES; MONOCRYSTALS; NEUTRON DIFFRACTION; PHONONS; STRUCTURE FACTORS; SUPERCONDUCTIVITY; SUPERCONDUCTORS; TEMPERATURE DEPENDENCE
Descriptors DEC
CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; CRYSTALS; DIFFRACTION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; LANTHANUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; QUASI PARTICLES; RARE EARTH COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPOUNDS; ZONES