| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1818449 | Physica C: Superconductivity and its Applications | 2011 | 4 Pages |
Abstract
⺠The effect of Y2BaCuO5 (Y211)/YBa2Cu3O7-y (Y123) interfaces on the oxygen diffusion in single grain YBa2Cu3O7-y superconductors was examined. ⺠The Y211/Y123 interfacial area in Y123 grains was successfully controlled by Y2O3 additions. ⺠The Tc value of surface region was higher than those of interior regions, which indicates the presence of more oxygen at the bulk surface. ⺠The Y211/Y123 interfaces promoted the oxygen diffusion into Y123 single grain. ⺠In spite of the promoted oxygen diffusion by Y2O3 addition, the large Tc difference among the regions still existed, which suggests sluggish oxygen diffusion into single Y123 grains.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
B.-H. Jun, S.-A. Jung, S.-D. Park, B.J. Park, Y.H. Han, C.-J. Kim,