Josephson critical currents in annular superconductors with Pearl vortices
Badía-Majós, A. (Universidad de Zaragoza)
Resumen: We investigate the influence of Pearl vortices in the vicinity of an edge-type Josephson junction for a superconducting thin-film loop in the form of an annulus, under uniform magnetic field. Specifically, we obtain the exact analytic formulation that allows one to describe the circulating current density and the gauge invariant phase increment ¿f across the junction. The main properties of ¿f and their influence on the critical current pattern Ic(B) are described quantitatively in terms of the loop''s width-to-radius ratio W/R and of the vortex position within the loop rv. It is shown that narrow loops (W/R<0.3) may be well described by the straight geometry limit. However, such approximation fails to predict a number of distinctive features captured by our formulation, such as the node lifting effect of the Ic(B) pattern in wide loops or the actual influence of a vortex pinned at different positions.
Idioma: Inglés
DOI: 10.1103/PhysRevB.98.184518
Año: 2018
Publicado en: Physical Review B 98, 18 (2018), 184518
ISSN: 2469-9950
Factor impacto SCIMAGO: 1.502 - Electronic, Optical and Magnetic Materials (Q1) - Condensed Matter Physics (Q1)
Financiación: info:eu-repo/grantAgreement/ES/MINECO/ENE2014-52105-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/ENE2017-83669-C4-1-R
Tipo y forma: Article (Published version)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
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Idioma: Inglés
DOI: 10.1103/PhysRevB.98.184518
Año: 2018
Publicado en: Physical Review B 98, 18 (2018), 184518
ISSN: 2469-9950
Factor impacto SCIMAGO: 1.502 - Electronic, Optical and Magnetic Materials (Q1) - Condensed Matter Physics (Q1)
Financiación: info:eu-repo/grantAgreement/ES/MINECO/ENE2014-52105-R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/ENE2017-83669-C4-1-R
Tipo y forma: Article (Published version)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. Exportado de SIDERAL (2020-01-17-21:56:40)
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Articles > Artículos por área > Física de la Materia Condensada
Record created 2019-01-30, last modified 2020-01-17