Minute Doping with Deleterious Rare Earths in YBa2Cu3O7-delta Films for Flux Pinning Enhancements (Postprint)
Abstract
To enhance the critical current density of YBa2Cu3O7-delta films, flux pinning centers are intentionally added to inhibit flux flow in applied magnetic fields. Here we provide an initial demonstration that the incorporation of very minor additions 1% of Y as opposed to the 10%-40% in standard substitutions of typically deleterious rare earths into high quality YBa2Cu3O7-delta thin films provides significant improvement of the film's in-field current density. This is accomplished without reoptimization of the deposition parameters. Instead of site substitution for Y as might be expected, the deleterious rare earths potentially result in the formation of nanoparticulates.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 2012
- Accession Number
- ADA560971
Entities
People
- B. C. Harrison
- Chakrapani V. Varanasi
- F. Ramos
- J. W. Kell
- M. Rane
- Paul N. Barnes
- Timothy J. Haugan
Organizations
- Air Force Research Laboratory