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摘要
This paper presents a very simple way to synthesis MgB(2) thick films with high critical current density in a magnetic field by ex-situ annealing precursor B films in air with excessive Mg in a sealed quartz tube. The films show a significant improvement of critical current density in a magnetic field compared to the high purity films annealed in vacuum, while its zero-resistance transition t
- 出版日期2008-11
- 单位河北大学
