本文用Ginzburg-Landau理论研究在薄介观超导环中的涡旋电荷分布.对于巨涡旋态,我们发现随着外场的增加,内半径附近的电荷会从负号变为正号.本文表明,是顺磁迈斯纳效应和抗磁迈斯纳效应的竞争决定了涡旋电荷的分布.
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