Effect of 'trapped' magnetic flux on the critical current in YBa2Cu3O(7-delta) film
Abstract
An investigation is made of the volt-ampere characteristics of 6000-A-thick films of the high-temperature superconductor YBa2Cu3O(7-delta) synthesized on a single-crystal SrTiO3 substrate via pulsed laser deposition in an oxygen environment. The results obtained point to the effect of 'trapped' persistent currents in intergranular regions on the critical transport current. Their superposition can lead to a decrease in the magnetic field strength in certain intergranular regions and to an increase in the percolation part of the critical current in the decreasing magnetic field.
- Publication:
-
Pisma v Zhurnal Tekhnischeskoi Fiziki
- Pub Date:
- November 1989
- Bibcode:
- 1989PZhTF..15...82T
- Keywords:
-
- High Temperature Superconductors;
- Magnetic Flux;
- Mixed Oxides;
- Trapped Magnetic Fields;
- Yttrium Oxides;
- Barium Oxides;
- Copper Oxides;
- Field Strength;
- Single Crystals;
- Strontium Titanates;
- Volt-Ampere Characteristics;
- Solid-State Physics