J. Mannhart, H. Hilgenkamp, et al.
Physical Review Letters
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.
J. Mannhart, H. Hilgenkamp, et al.
Physical Review Letters
J. Mannhart, R. Gross, et al.
Cryogenics
Y. Yeshurun, M.W. McElfresh, et al.
Physical Review B
Yu. Ya. Divin, J. Mygind, et al.
IEEE TAS