Published July 15, 1990
| Version v1
Journal article
Critical current measurements in YBa2Cu3O7-x thin film grown on LaAlO3 substrate
- 1. Institute of Physics, Academia Sinica, Beijing (People's Republic of China)
Description
The critical current density Jc(B,T) of epitaxial YBa2Cu3O7-x (YBCO) thin films on LaAlO3 was measured under different applied magnetic fields (0--7 T) with the temperature ranging from 65 to 79 K. At 65 K, the zero-field critical current density of the best film was 5.8x106 A/cm2; even at magnetic fields up to 7 T, Jc could reach as high as 1x106 A/cm2. Strong anisotropy was observed at 79 K. The anisotropy behavior diminished with the decrease of temperature. Experimental results showed that Jc was proportional to (Tc-T)3/2; this was in accordance with the theoretical explanation by the Josephson junction model for granular superconductors
Additional details
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 68
- Journal Issue
- 2
- Series
- J. Appl. Phys.
- Journal Page Range
- 884-886
- ISSN
- 0021-8979
- CODEN
- JAPIA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21086224
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ALUMINIUM OXIDES; ANISOTROPY; BARIUM OXIDES; COPPER OXIDES; CRITICAL CURRENT; EPITAXY; GRANULAR MATERIALS; JOSEPHSON JUNCTIONS; LANTHANUM OXIDES; LOW TEMPERATURE; MAGNETIC FIELDS; STRUCTURAL MODELS; SUBSTRATES; SUPERCONDUCTING FILMS; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CURRENTS; ELECTRIC CURRENTS; FILMS; LANTHANUM COMPOUNDS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SEMICONDUCTOR JUNCTIONS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS