Published August 1, 1993
| Version v1
Journal article
Absence of Cu2+ electron-spin resonance in high-temperature superconductors and related insulators up to 1150 K
- 1. Centre de Recherche sur la Physique des Solides, CNRS, 45071 Orleans Cedex 2 (France)
- 2. Physics Department, San Diego State University, San Diego, California 92182 (United States)
- 3. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- 4. AT ampersand T Bell Laboratories, Murray Hill, New Jersey 07974 (United States)
- 5. Laboratorie de Chimie du Solide, CNRS, Universite de Bordeaux I, 33405 Talence Cedex (France)
- 6. Physics Department, University of California, San Diego, California 92093 (United States)
Description
One unresolved question in the high-temperature superconductors and their copper oxide parent compounds is the absence of a Cu2+ electron-spin-resonance (ESR) signal even at temperatures well above the Neel temperature. We have extended the measurements up to 1150 K in both single crystals and ceramic pellets of La2CuO4+δ, 0 approx-lt δ approx-lt 0.12, and no ESR signal has been observed. Our data are not compatible with the models based only on magnetic fluctuations which predict an ESR linewidth of a few hundred Oe at such high temperatures. Other suggested explanations for the absence of a Cu2+ ESR signal are discussed
Additional details
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter
- Journal Volume
- 48
- Journal Issue
- 6
- Journal Page Range
- p. 4216-4218.
- ISSN
- 0163-1829
- CODEN
- PRBMDO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 24068938
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- COPPER IONS; COPPER OXIDES; ELECTRON SPIN RESONANCE; ELECTRONIC STRUCTURE; HIGH-TC SUPERCONDUCTORS; LANTHANUM OXIDES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K
- Descriptors DEC
- CHALCOGENIDES; CHARGED PARTICLES; COPPER COMPOUNDS; IONS; LANTHANUM COMPOUNDS; MAGNETIC RESONANCE; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; RESONANCE; SUPERCONDUCTORS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS