Tailored Thin Films of Superconducting Bi-Sr-Ca-Cu Oxide Prepared by Excimer Laser Ablation Technique
- 1 May 1989
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 28 (5A), L823
- https://doi.org/10.1143/jjap.28.l823
Abstract
Site-selective substitution of Ba for Sr or Ca in a layered (Bi-Pb)2Sr2Ca1Cu2O y structure has been performed by a successive deposition method using pulsed excimer laser ablation. The introduction of Ba to the Sr site diminishes the superconductivity, whereas that to the Ca site improves the superconducting properties, resulting in a higher T c value. The extent of this improvement is observed in the order of Ba>Sr>Ca, being consistent with the expansion of the lattice parameter of the c axis.Keywords
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