【摘要】 我们测量了不同镀Cu厚度的气相沉积Nb,Sn带的垂直场磁化曲线,由这些曲线,我们发现当镀Cu厚度从30μm增加到60μm时,初始磁通跳跃场从10kG增加到14 kG.作为比较,我们也测量了几条扩散Nb,Sn带的垂直场磁化曲线.更多还原

【Abstract】 Magnetization curves of vapour-deposited superconductive ribbons with different thickness of copper cladding have been measured in perpendicular field. From these curves it is found that the initial flux jumping field increases from 10 kG to 14 kG, when the thickness of copper cladding increases from 30μm to 60 μm. For comparison, magnetization curves of diffused-layer superconductive ribbons have also been measured in perpendicular field.更多还原