Published January 1, 1990 | Version v1
Journal article Metadata-only

Measurement of Teff for Cu in YBa2Cu3O7 by neutron resonance absorption

Creators

  • 1. Solid State Division, Oak Ridge National Laboratory, Post Office Box 2008, Oak Ridge, Tennessee 37831-6393 (USa)
  • 2. Engineering Physics and Mathematics, Oak Ridge National Laboratory, Post Office Box 2008, Oak Ridge, Tennessee 37831-6356 (USA)
  • 3. Instrumentation and Controls, Oak Ridge National Laboratory, Post Office Box 2008, Oak Ridge, Tennessee 37831-6354 (USA)

Description

High-resolution transmission measurements were made at room temperature of the shape of the neutron resonance at 230.3 eV for 65Cu for the high-temperature superconductor YBa2Cu3O7. From the shape of the resonance the effective temperature Teff for Cu in the compound was determined. An identical measurement was also made for Cu metal. Teff for Cu metal was found to be 314±28 K, while the measurement for YBa2Cu3O7 yielded a Teff of 297±28 K. This shows that the Cu phonons in YBa2Cu3O7 have the same energy scale as the phonons in Cu metal

Additional details

Publishing Information

Journal Title
Physical Review, B: Condensed Matter
Journal Volume
41
Journal Issue
1
Series
Phys. Rev., B: Condens. Matter.
Journal Page Range
764-765
ISSN
0163-1829
CODEN
PRBMD

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
21057578
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
BARIUM OXIDES; COPPER OXIDES; COPPER 65; LATTICE VIBRATIONS; NEUTRONS; PHONONS; RESONANCE ABSORPTION; SUPERCONDUCTIVITY; YTTRIUM OXIDES
Descriptors DEC
ABSORPTION; ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; BARYONS; CHALCOGENIDES; COPPER COMPOUNDS; COPPER ISOTOPES; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INTERMEDIATE MASS NUCLEI; ISOTOPES; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; QUASI PARTICLES; STABLE ISOTOPES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS