Deposition and Characterization of$hboxY_1-xhboxCa_xhboxBa_2hboxCu_3hboxO_7-delta$ Epitaxial Thin Films
| Autor: | C. Cancellieri, A. Augieri, V. Boffa, G. Celentano, L. Ciontea, F. Fabbri, V. Galluzzi, U. Gambardella, G. Grassano, T. Petrisor, R. Tebano |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Materials science
High-temperature superconductivity Annealing (metallurgy) Crystal chemistry Analytical chemistry Thermal treatment Partial pressure Condensed Matter Physics Epitaxy Electronic Optical and Magnetic Materials Pulsed laser deposition law.invention law Electrical and Electronic Engineering Thin film |
| Zdroj: | IEEE Transactions on Appiled Superconductivity. 15:3038-3041 |
| ISSN: | 1051-8223 |
| Popis: | We report on the superconducting properties of epitaxial thin films Y/sub 1-x/Ca/sub x/Ba/sub 2/Cu/sub 3/O/sub 7-y/ with 0/spl les/x/spl les/0.2, grown on SrTiO/sub 3/ [001] by Pulsed Laser Deposition (PLD) technique. The partial substitution of Ca/sup 2+/ at the Y/sup 3+/site in YBCO leads to a monotonic decrease of the zero resistance critical temperature, T/sub c/. The oxygen stoichiometry is varied by means of post-deposition thermal treatment varying the oxygen partial pressure. The dependence of T/sub c/ on annealing oxygen pressure can be attributed to an overdoping effect and/or to a cation disorder. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|