Superconducting thin rings with finite penetration depth
Superconducting thin rings with finite penetration depth
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DOI：
10.1103/physrevb.69.184509
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发表时间：
2004-05-01
影响因子：
3.7
通讯作者：
Clem, JR
中科院分区：
文献类型：
--
作者：
Brandt, EH;Clem, JR
最近 Babaei Brojeny 和 Clem [Phys. Rev. B 68, 174514 (2003)]考虑了理想迈斯纳状态下垂直磁场中的超导薄膜环，具有可忽略不计的小磁穿透深度，并提出了有用的分析极限表达式和数值结果，包括磁场和片电流分布、俘获磁通量、自感、磁矩以及当环中没有净电流流动时磁通量聚焦到孔中。本文将所有这些结果推广到具有任意二维有效穿透深度值的环 Lambda=lambda(2)/d（lambda 是伦敦深度，d 是
Recently Babaei Brojeny and Clem [Phys. Rev. B 68, 174514 (2003)] considered superconducting thin-film rings in perpendicular magnetic fields in the ideal Meissner state with negligibly small magnetic penetration depth and presented useful analytical limiting expressions and numerical results for the magnetic-field and sheet-current profiles, trapped magnetic flux, self-inductance, magnetic moment, and focusing of magnetic flux into the hole when no net current flows in the ring. The present paper generalizes all these results to rings with arbitrary values of the two-dimensional effective penetration depth Lambda=lambda(2)/d (lambda is the London depth and d