Large Jc enhancement by ion irradiation for thick YBa2Cu3O7−δ films prepared by photoassisted metalorganic chemical vapor deposition
- 17 March 1997
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 70 (11) , 1474-1476
- https://doi.org/10.1063/1.118566
Abstract
Thick superconducting films of grown by photoassisted metalorganic chemical vapor deposition that have shown a decrease of with increasing thickness (>1 μm) have been exposed to ion irradiation in an attempt to enhance A 4.5 μm thick film irradiated with 1 MeV protons at a dose of has shown an increase of by a factor of nearly corroborating the proposal that a lack of pinning centers in the grown thick films, due to their high crystalline quality, contributed to the observed decrease of with increasing film thickness.
Keywords
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