VORTEX FLUCTUATIONS IN LAYERED SUPERCONDUCTORS AND THIN-FILMS

被引：25

作者：

BLATTER, G ^{[1
]}

IVLEV, B ^{[1
]}

NORDBORG, H ^{[1
]}

机构：

[1] LD LANDAU INST THEORET PHYS,MOSCOW 117940,RUSSIA

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.48.10448

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We determine the free energy of a vortex fine within the Ginzburg-Landau formalism. Besides the usual translational modes we also take account of self-fluctuations of the order parameter in the calculation of the vortex free energy. The latter are due to the internal structure of a vortex line and lead to an observable downward renormalization of the lower critical-field line H(c1) (T) in strongly layered superconductors. In thin films the self-fluctuations of the vortex lead to a reduction in the power-law exponent of the current-voltage characteristic. We argue that in a three-dimensional system the spontaneous creation of vortex lines cannot occur.

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收藏

页码：10448 / 10456

页数：9

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