Non-conventional vortex configurations in a mesoscopic flat disk

被引：17

作者：

Barba-Ortega, J. ^{[1
]}

Sardella, Edson ^{[2
,3
]}

Aguiar, J. Albino ^{[4
]}

Peeters, F. M. ^{[5
,6
]}

机构：

[1] Univ Nacl Colombia, Dept Fis, Grp Fis Mesoscop, Bogota, Colombia

[2] UNESP Univ Estadual Paulista, Dept Fis, Bauru, SP, Brazil

[3] UNESP Univ Estadual Paulista, IPMet Inst Pesquisas Meteorol, BR-17048699 Bauru, SP, Brazil

[4] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil

[5] Univ Antwerp, Dept Fys, B-2020 Antwerp, Belgium

[6] Univ Fed Ceara, Dept Fis, BR-60455760 Fortaleza, Ceara, Brazil

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2013年 / 487卷

基金：

巴西圣保罗研究基金会;

关键词：

Vortex; Ginzburg-Landau; Mesoscopic samples; SUPERCONDUCTING THIN-FILMS; VARIABLE THICKNESS; SURFACE-BARRIER; STATE; MODEL;

D O I：

10.1016/j.physc.2013.01.021

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of superficial defects on the vortex configurations of a thin superconducting disk is investigated within the time dependent Ginzburg-Landau formalism. The free energy, magnetization, vorticity, and the Cooper pair density are calculated for both metastable and stable vortex configurations and different number of defects on its surface in the presence of an external magnetic field applied perpendicular to the disk area. We show that the competition between the confinement geometry and the geometric position of the defects leads to non-conventional vortex configurations which are not compatible with the symmetry of the sample geometry. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.

引用

页码：47 / 55

页数：9

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