INSITU GROWTH OF YBACUO SUPERCONDUCTING THIN-FILMS BY EXCIMER-LASER ABLATION - INFLUENCE OF DEPOSITION AND COOLING PARAMETERS

被引：21

作者：

CHAMPEAUX, C

MARCHET, P

AUBRETON, J

MERCURIO, JP

CATHERINOT, A

机构：

[1] URA 320 CNRS, Faculté des Sciences, 87060 Limoges Cedex

来源：

APPLIED SURFACE SCIENCE | 1993年 / 69卷 / 1-4期

关键词：

D O I：

10.1016/0169-4332(93)90529-K

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In situ YBaCuO thin films are deposited on MgO single-crystal by pulsed laser ablation using an excimer laser (KrF, 248 nm). Deposition and cooling conditions are investigated in order to obtain c-oriented samples. The influence of substrate temperature and oxygen pressure during both deposition and post-deposition processes on the structural (orientation, lattice parameters) and electrical (resistivity at 300 K, critical temperature, transition width) film properties is analyzed. These studies lead to reproducible high quality c-oriented thin films which exhibit a critical temperature of 90 K, a superconducting transition width less than 1 K and a good behavior in the normal state.

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页码：335 / 339

页数：5

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