Geometry-induced localization of thermal fluctuations in ultrathin superconducting structures

Details Geometry-induced localization of thermal fluctuations in ultrathin superconducting structures Geometry-induced localization of thermal fluctuations in ultrathin superconducting structures

2010-09-03

arxiv.org/abs/1009.0590v1

Phys. Rev. B 82, 054523 (2010)

Physics

Condensed Matter

Superconductivity

9 pages, 5 figures

Scientific paper

10.1103/PhysRevB.82.054523

Thermal fluctuations of the order parameter in an ultrathin triangular shaped superconducting structure are studied near $T_{c}$, in zero applied field. We find that the order parameter is prone to much larger fluctuations in the corners of the structure as compared to its interior. This geometry-induced localization of thermal fluctuations is attributed to the fact that condensate confinement in the corners is characterised by a lower effective dimensionality, which favors stronger fluctuations.

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