DC sputtered high-temperature superconducting thin films in the Bi-Sr-Ca-Cu-O system
- 1 December 1988
- journal article
- Published by IOP Publishing in Superconductor Science and Technology
- Vol. 1 (4) , 201-204
- https://doi.org/10.1088/0953-2048/1/4/010
Abstract
High-Tc superconducting thin films have been successfully obtained from single-target DC sputtering deposition followed by an appropriate annealing. Sapphire and (100) SrTiO3 substrates were used. In the latter case, strongly oriented c-axis films were obtained. For the nominal composition 2:2:1:2 the films exhibit a strong metallic behaviour in the normal state and a sharp superconducting transition, with an onset around 84 K. The critical current density is at least 2*103 A cm-2 at 70 K. For the composition 1:1:1:2 a kink in the R(T) curve clearly appears near 110 K. This transition appears especially sensitive to thermal treatment.Keywords
This publication has 10 references indexed in Scilit:
- Bi-Sr-Ca-Cu-oxide superconducting thin films deposited by dc magnetron sputteringApplied Physics Letters, 1988
- Crystal substructure and physical properties of the superconducting phasePhysical Review B, 1988
- Fabrication of the Bi1Sr1Ca1Cu2Ox high T c superconductorApplied Physics Letters, 1988
- Preparation of superconducting thin films of calcium strontium bismuth copper oxides by coevaporationApplied Physics Letters, 1988
- Preparation and Properties of Superconducting Bi-Sr-Ca-Cu-O Thin FilmsJapanese Journal of Applied Physics, 1988
- Superconductivity in thin films of the Bi-Ca-Sr-Cu-O systemPhysics Letters A, 1988
- A New High-Tc Oxide Superconductor without a Rare Earth ElementJapanese Journal of Applied Physics, 1988
- d.c. sputtering elaboration of thin films of the high-Tc superconductor YBa2Cu3O7-x: evidence for strong film-substrate interactionsRevue de Physique Appliquée, 1988
- Superconductivity in the Bi - Sr - Cu - O systemZeitschrift für Physik B Condensed Matter, 1987
- Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressurePhysical Review Letters, 1987