Published September 1, 1987
| Version v1
Journal article
Complete absence of isotope effect in YBa2Cu3O7: Consequences for phonon-mediated superconductivity
- 1. Department of Physics, University of California, Berkeley, California 94720
Description
YBa2Cu3O7 has been prepared with enriched /sup 135/Ba, /sup 138/Ba, /sup 63/Cu, and /sup 65/Cu isotopes. The superconducting transition temperature T/sub c/ is found to be insensitive to the mass of the Ba and Cu atoms. This result, when combined with earlier findings of no T/sub c/ shift for oxygen-isotope substitution or rare-earth substitution, demonstrates the complete absence of an isotope effect in YBa2Cu3O7. The consequences of these results for the applicability of phonon-mediated electron pairing mechanisms are discussed
Additional details
Publishing Information
- Journal Title
- Phys. Rev., B: Condens. Matter
- Journal Volume
- 36
- Journal Issue
- 7
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 3990-3993
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19008045
- Subject category
- S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BARIUM ISOTOPES; BARIUM OXIDES; BARIUM 135; BARIUM 138; COPPER ISOTOPES; COPPER OXIDES; COPPER 63; COPPER 65; ISOTOPE EFFECTS; SUPERCONDUCTIVITY; TRANSITION TEMPERATURE; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; DAYS LIVING RADIOISOTOPES; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIOISOTOPES; STABLE ISOTOPES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS