Spontaneous vortex formation on a superconducting film | Zendy

M. Donaire | Zendy; T. W. B. Kibble | Zendy; Arttu Rajantie | Zendy

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Spontaneous vortex formation on a superconducting film

Author(s) -

M. Donaire,

T. W. B. Kibble,

Arttu Rajantie

Publication year - 2007

Publication title -

new journal of physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.584

H-Index - 190

ISSN - 1367-2630

DOI - 10.1088/1367-2630/9/5/148

Subject(s) - physics , vortex , superconductivity , superfluidity , trapping , condensed matter physics , electromagnetic field , flux (metallurgy) , hamiltonian (control theory) , vorticity , parameter space , field (mathematics) , quantum mechanics , mechanics , materials science , mathematics , pure mathematics , metallurgy , biology , ecology , mathematical optimization , statistics

We carry out numerical simulations to investigate spontaneous vortexformation during a temperature quench of a superconductor film from the normalto the superconducting phase in the absence of an external magnetic field. Ourresults agree roughly with quantitative predictions of the flux trappingscenario: In fast quenches the agreement is almost perfect, but there appearsto be some discrepancy in slower ones. In particular, our simulationsdemonstrate the crucial role the electromagnetic field plays in thisphenomenon, making it very different from vortex formation in superfluids.Besides superconductor experiments, our findings also shed more light on thepossible formation of cosmic defects in the early universe.Comment: 9 pages, 8 figure

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