Suppression of Vortex Channeling in Meandered YBa2Cu3O7-δ Grain Boundaries
- University of Cambridge
- Los Alamos National Laboratory (LANL)
- ORNL
We report on the in-plane magnetic field (H) dependence of the critical current density (J{sub c}) in meandered and planar single grain boundaries (GBs) isolated in YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO) coated conductors. The meandered boundaries resulted from metal-organic deposition, and the planar boundaries resulted from physical vapor deposition. The J{sub c}(H) properties of the planar GB are consistent with those previously seen in single GBs of YBCO films grown on SrTiO{sub 3} bicrystals. In the straight boundary, a characteristic flux channeling regime when H is oriented near the GB plane, associated with a reduced J{sub c}, is seen. The meandered GB does not show vortex channeling since it is not possible for a sufficient length of vortex line to lie within it.
- Research Organization:
- Oak Ridge National Laboratory (ORNL)
- Sponsoring Organization:
- SC USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 932096
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 18 Vol. 91; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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