Department of Physics, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerpen, Belgium.
Phys Rev Lett. 2009 Dec 31;103(26):267002. doi: 10.1103/PhysRevLett.103.267002. Epub 2009 Dec 23.
Intermediate-state flux structures in mesoscopic type-I superconductors are studied within the Ginzburg-Landau theory. In addition to well-established tubular and laminar structures, the strong confinement leads to the formation of (i) a phase of singly quantized vortices, which is typical for type-II superconductors and (ii) a ring of a normal domain at equilibrium. The stability region and the formation process of these intermediate-state structures are strongly influenced by the geometry of the sample.
介观 I 型超导体中的中间态磁通结构在吉布斯-朗道理论中进行了研究。除了公认的管状和层状结构外，强约束导致了（i）单量子化涡旋相的形成，这是 II 型超导体的典型特征，以及（ii）平衡时的正常域环的形成。这些中间态结构的稳定区域和形成过程受到样品几何形状的强烈影响。
