Ca doping of YBCO thin films

被引：0

作者：

Berenov, A ^{[1
]}

MacManus-Driscoll, JL ^{[1
]}

MacPhail, D ^{[1
]}

Foltyn, S ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2BP, England

来源：

PROCESSING OF HIGH-TEMPERATURE SUPERCONDUCTORS | 2003年 / 140卷

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D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Ca-gels were applied to PLD YBCO thick films followed by high temperature post-annealing. Parameters of Ca diffusion in YBCO (diffusion coefficients, activation energy, etc) as a function of temperature were determined by depth profiling SIMS. Fast Ca diffusion along the grain boundaries was observed. The effect of Ca-doping on T-c and J(c) was studied by VSM. Ca distribution in the samples, induced by preferential diffusion along the grain boundaries, did not appear to change superconducting properties within the grains but showed increased Jc across the grain boundaries.

引用

页码：243 / 248

页数：6

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