Formation of phase intergrowth in the syntheses of Bi-superconducting thin films
- 17 March 1997
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 70 (11) , 1471-1473
- https://doi.org/10.1063/1.118565
Abstract
Phase intergrowth among some kinds of the Bi2Sr2Can−1CunOy phases is observed in the thin film fabrication at ultralow co-deposition with multitargets by means of ion beam sputtering. The molar fraction of the Bi2212 phase in the mixed crystal of the grown films is investigated as a function of the applied ozone pressure and the substrate temperature. The activation energy for the phase transformation from the Bi2201 to the Bi2212 is estimated in terms of the Avrami equation. This study reveals that the formation of a liquid phase contributes significantly to the construction of the Bi2212 phase in the thin films, differing from the bulk synthesis.Keywords
This publication has 13 references indexed in Scilit:
- Comparison between Bi-superconductor thin films fabricated via co-deposition and layer-by-layer deposition by ion beam sputtering methodThin Solid Films, 1996
- The influence of Bi-sticking coefficient in the growth of Bi(2212) thin film by ion beam sputteringThin Solid Films, 1996
- Phase equilibria and melt processing of Bi2Sr2Ca1Cu2O8+x tapes at reduced oxygen partial pressuresApplied Physics Letters, 1994
- Sequential imposed layer epitaxy of cuprate filmsJournal of Superconductivity, 1994
- Josephson coupling in a-axis YBa2Cu3O7−δ/Pr1−xYxBa2Cu3O7−δ /YBa2Cu3O7−δ sandwich-type junctionsApplied Physics Letters, 1993
- Phase intergrowth in thin filmsPhysical Review B, 1993
- Determination of the noise level of chaotic time seriesPhysical Review E, 1993
- Phase chemistry and microstructure evolution in silver-clad (Bi/sub 2-x/Pb/sub x/)Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub y/ wiresIEEE Transactions on Applied Superconductivity, 1993
- Josephson characteristics in a-axis oriented YBa2Cu3O7−δ/PrBa2Cu3O7−δ′/YBa2Cu3O7−δ junctionsApplied Physics Letters, 1992
- Interdiffusion, growth mechanisms, and critical currents in / superlatticesPhysical Review Letters, 1991