Published August 31, 1992
| Version v1
Journal article
Absence of circular dichroism in high-temperature superconductors
- 1. Department of Physics, Stanford University, Stanford, California 94305 (United States)
- 2. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (United States)
Description
We have repeated and improved upon the experiment of Lyons et al., in which the observation of circular dichroism in high-Tc superconductors was reported. We found a simple extension to the previous technique which makes the apparatus exclusively sensitive to T-violating circular dichroism. We find no evidence for a temperature-dependent signal in all YBa2Cu3O7-δ samples studied. We establish sensitivity of the apparatus to surface roughness and ascribe the previously observed signal to possible surface contamination
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 69
- Journal Issue
- 9
- Journal Page Range
- p. 1439-1442.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 24010104
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANYONS; BARIUM OXIDES; COPPER OXIDES; DICHROISM; HIGH-TC SUPERCONDUCTORS; ROUGHNESS; SUPERCONDUCTIVITY; SURFACE CONTAMINATION; SYMMETRY BREAKING; T INVARIANCE; TEMPERATURE DEPENDENCE; TYPE-II SUPERCONDUCTORS; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; CONTAMINATION; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; INVARIANCE PRINCIPLES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; QUASI PARTICLES; SUPERCONDUCTORS; SURFACE PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS