La plateforme OSKAR Bordeaux évolue pour rejoindre l'archive ouverte HAL. Retrouvez tous vos dépôts sur le nouveau portail HAL UB : https://u-bordeaux.hal.science/. Pour toute aide ou information, contactez-nous info@oskar-bordeaux.fr
Thickness dependence of the Josephson ground states of superconductor-ferromagnet-superconductor junctions
BUZDIN, Alexandre I.
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]
< Réduire
Centre de physique moléculaire optique et hertzienne [CPMOH]
Institut universitaire de France [IUF]
Langue
en
Article de revue
Ce document a été publié dans
Physical Review Letters. 2005, vol. 96, n° 19, p. 197003 (1-4)
American Physical Society
Résumé en anglais
We report the first experimental observation of the two-node thickness dependence of the critical current in Josephson junctions with a ferromagnetic interlayer. Vanishings of the critical current correspond to transitions ...Lire la suite >
We report the first experimental observation of the two-node thickness dependence of the critical current in Josephson junctions with a ferromagnetic interlayer. Vanishings of the critical current correspond to transitions into pi-state and back into conventional 0-state. The experimental data allow to extract the superconducting order parameter oscillation period and the pair decay length in the ferromagnet. We develope a theoretical approach based on Usadel equations, which takes into account the spin-flip scattering. Results of numerical calculations are in good agreement with the experimental data.< Réduire
Origine
Importé de halUnités de recherche