Published May 1, 1989
| Version v1
Journal article
Quasi-two-dimensional phase fluctuations in bulk superconducting YBa2Cu3O7 single crystals
Creators
- 1. IBM Research Division, Thomas J. Watson Research Center, Yorktown Heights, New York 10598
Description
A detailed study of the electrical transport properties in high-quality bulk single crystals YBa2Cu3O7 has manifested a Kosterlitz-Thouless (K-T)--type transition in the ab plane 0.2 K below the mean-field superconducting transition (T/sub c/0 = 93.15 K). The c-axis correlation length l/sub c/(T = 0)≅6 A and a large two-dimensional effective mass (m/sub a//sub b//sup *//m/sub e//similar to/10) of the supercarrier are estimated based on the K-T theory. The large effective mass suggests strong electron-electron correlations for the supercarriers confined in a quasi-two-dimensional sheet
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 39
- Journal Issue
- 13
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 9708-9711
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20051875
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BARIUM OXIDES; COPPER OXIDES; EFFECTIVE MASS; ELECTRIC CONDUCTIVITY; ELECTRON CORRELATION; MEAN-FIELD THEORY; MONOCRYSTALS; PHASE STUDIES; TRANSITION TEMPERATURE; TWO-DIMENSIONAL CALCULATIONS; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CORRELATIONS; CRYSTALS; ELECTRICAL PROPERTIES; MASS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS