Min Yang, Jeremy Schaub, et al.
Technical Digest-International Electron Devices Meeting
A series of YBa2Cu3O7-δ(YBCO) epitaxial films and crystals were irradiated with energetic heavy ions (Sn30+ or Ag29+ at energy 0.58 GeV) to produce columnar defects of highly disordered material. The irreversibility lines, B*(T), show enhancement due to the increased pinning. However, while B* does not exceed that observed in the highest-Jc as-grown epitaxial thin films, the values approach the proposed vortex melting line determined by a number of experiments on nearly defect-free single crystals. These results are interpreted in terms of the predicted upper limit of pinning energies in anisotropic superconductors, and the thermally-induced decoupling of vortex segments. © 1994.
Min Yang, Jeremy Schaub, et al.
Technical Digest-International Electron Devices Meeting
J.R. Thompson, Yang Ren Sun, et al.
Physica A: Statistical Mechanics and its Applications
J. Paraszczak, J.M. Shaw, et al.
Micro and Nano Engineering
Dipanjan Gope, Albert E. Ruehli, et al.
IEEE T-MTT