Critical-current anisotropy in superconducting Nb3Sn coatings produced by electrocodeposition of Nb and Sn

被引：0
|
作者：
V. N. Kolosov
A. A. Shevyrev
机构：
[1] Russian Academy of Sciences,Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center
[2] Sintez Research and Production Center,undefined
来源：
Inorganic Materials | 2010年 / 46卷
关键词：
Tantalum; Critical Current; Transverse Magnetic Field; Anisotropy Factor; Superconducting Layer;
D O I：
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中图分类号：
学科分类号：
摘要：
We report the critical current of superconducting Nb3Sn coatings produced by electrocodeposition from molten salts and its anisotropy in transverse magnetic fields. The anisotropy is quantified by the ratio of the critical currents measured in magnetic fields parallel and normal to the coating surface, k. The effect of doping with tantalum and nitrogen on the microstructure, critical current, and anisotropy factor k of Nb3Sn coatings is examined. The k of the undoped and tantalum-doped coatings ranges from 0.4 to 1.0, and that of the nitrogen-doped coatings, from 0.4 to 1.4. The critical current anisotropy is interpreted in terms of the microstructure of the coatings.
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页码：144 / 150
页数：6
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