Preparation of high J c Ba2YCu3O7−y-Ag composite films on SrTiO3 (100) substrates by the dipping-pyrolysis process
- 24 August 1992
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 61 (8) , 988-990
- https://doi.org/10.1063/1.107697
Abstract
Superconducting Ba2YCu3O7−y (BYCO)‐Ag composite films with an (Ag/BYCO) molar ratio of 0.2 were prepared on SrTiO3(100) substrates by the dipping‐pyrolysis process through heat treatments at 700–800 °C under a low‐oxygen partial pressure (=2×10−4 atm) followed by O2 annealing. The product films were highly c‐axis oriented and gave sharp rocking curves. High superconducting transition temperature Tc, zero(r) of 89 K and high critical current density Jc (77 K, 0 T) of 1.1×106 A/cm2 were obtained for a 0.9‐μm‐thick composite film heat treated at 770 °C.Keywords
This publication has 14 references indexed in Scilit:
- Effect of growth conditions on the properties and morphology of chemically derived epitaxial thin films of Ba2YCu3O7−x on (001) LaAlO3Journal of Applied Physics, 1992
- Effects of Annealing Conditions and Substrate Materials on the Superconducting Properties of Ba2YCu3O7-y Films Prepared by the Dipping-Pyrolysis Process at 750°CJapanese Journal of Applied Physics, 1991
- Mixed-state behavior in large magnetic fields of high-temperature superconducting films prepared by metalorganic depositionApplied Physics Letters, 1991
- Preparation of Superconducting Ba2YCu3O7-y Films by the Dipping-Pyrolysis Process at 700° and 750°CJapanese Journal of Applied Physics, 1991
- Metalorganic deposition of high-J c Ba2YCu3O7−x thin films from trifluoroacetate precursors onto (100) SrTiO3Journal of Applied Physics, 1990
- Effects of Heat Treatment Conditions on the Critical Current Densities of Ba2YCu3O7-y Films Prepared by the Dipping-Pyrolysis ProcessJapanese Journal of Applied Physics, 1990
- Superconducting oxide films with high transition temperature prepared from metal trifluoroacetate precursorsApplied Physics Letters, 1988
- Preparation of Superconducting YBa2Cu3O7−δ Films by the Dipping-Pyrolysis Process Using Metal AcetylacetonatesChemistry Letters, 1988
- Preparation of superconducting thin films of Ba2YCu3O7 by a novel spin-on pyrolysis techniqueApplied Physics Letters, 1987
- Preparation of Superconducting YBa2Cu3O7−δ Thin Films by the Dipping-Pyrolysis Process Using Organic Acid SaltsChemistry Letters, 1987