NEW HIGH-TEMPERATURE SUPERCONDUCTING PHASE SPREAD ALLOY THIN-FILMS

被引：4

作者：

LEDERMAN, D

MORAN, TJ

HASEN, J

SCHULLER, IK

机构：

[1] Physics Department, University of California, San Diego

来源：

APPLIED PHYSICS LETTERS | 1993年 / 63卷 / 09期

关键词：

D O I：

10.1063/1.109756

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have prepared Gd1-xPrxBa2Cu3O7-delta phase spread alloy thin films with well-defined variations in the concentration of Pr across a single substrate. Their Pr concentrations were independently determined from electrical resistivity and Auger electron spectroscopy measurements. The results from both methods are in good agreement with each other. Using this technique several high-temperature superconducting thin-film alloys may be grown under virtually identical conditions. As an example of an important application of this technique, we measured the changes in the films' resistivities and critical temperatures (T(c)) induced by decreasing their oxygen concentration. The observed shifts in T(c) of the oxygen-deficient samples appear to be slightly dependent on their Pr concentrations.

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页码：1276 / 1278

页数：3

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