Nucleation of vortices and anti-vortices in mesoscopic superconducting discs

W. M. Wu; M. B. Sobnack; F. V. Kusmartsev

doi:10.1007/s10909-007-9588-2

Nucleation of vortices and anti-vortices in mesoscopic superconducting discs

W. M. Wu, M. B. Sobnack, F. V. Kusmartsev

Physics

Loughborough University

Research output: Contribution to journal › Article › peer-review

Abstract

We investigate the nucleation of vortices and anti-vortices in a small superconducting disc. We formulate the Gibbs free energy of the disc with an arbitrary number of vortices and anti-vortices as a function of temperature and applied magnetic field and minimize the energy to obtain the optimal position of vortices for different applied fields and temperatures. We also analyse the stability of anti-vortices inside the disc.

Original language	British English
Pages (from-to)	654-659
Number of pages	6
Journal	Journal of Low Temperature Physics
Volume	150
Issue number	3-4
DOIs	https://doi.org/10.1007/s10909-007-9588-2
State	Published - Feb 2008

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title = "Nucleation of vortices and anti-vortices in mesoscopic superconducting discs",

abstract = "We investigate the nucleation of vortices and anti-vortices in a small superconducting disc. We formulate the Gibbs free energy of the disc with an arbitrary number of vortices and anti-vortices as a function of temperature and applied magnetic field and minimize the energy to obtain the optimal position of vortices for different applied fields and temperatures. We also analyse the stability of anti-vortices inside the disc.",

author = "Wu, {W. M.} and Sobnack, {M. B.} and Kusmartsev, {F. V.}",

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N2 - We investigate the nucleation of vortices and anti-vortices in a small superconducting disc. We formulate the Gibbs free energy of the disc with an arbitrary number of vortices and anti-vortices as a function of temperature and applied magnetic field and minimize the energy to obtain the optimal position of vortices for different applied fields and temperatures. We also analyse the stability of anti-vortices inside the disc.

AB - We investigate the nucleation of vortices and anti-vortices in a small superconducting disc. We formulate the Gibbs free energy of the disc with an arbitrary number of vortices and anti-vortices as a function of temperature and applied magnetic field and minimize the energy to obtain the optimal position of vortices for different applied fields and temperatures. We also analyse the stability of anti-vortices inside the disc.

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Nucleation of vortices and anti-vortices in mesoscopic superconducting discs

Abstract

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