Z. Ivanov, E.A. Stepantsov, et al.
Czechoslovak Journal of Physics
The temperature and magnetic field dependences of the critical-current density of superconducting YBa2Cu3O7 films have been determined from transport measurements across individual [001] tilt boundaries and within single [001] grains. The results provide evidence that the basal-plane Jf is limited by flux creep. In contrast, the I-V characteristics and the temperature magnetic field dependences of the grain-boundary Jc are consistent with a superconductor- normal-superconductor-type weak-link behavior. These results imply that the transport properties of these materials can be treated within a BCS framework. © 1988 The American Physical Society.
Z. Ivanov, E.A. Stepantsov, et al.
Czechoslovak Journal of Physics
P. Chaudhari
Journal of Applied Physics
E. Sarnelli, P. Chaudhari, et al.
IEEE TAS
H.-M. Christen, J. Mannhart, et al.
Physical Review B