VLASKO-VLASOV, V. K.; COLAUTO, F.; BUZDIN, Alexandre I.; ROSENMANN, D.; BENSEMAN, T.; KWOK, W.-K.

doi:10.1103/PhysRevB.95.174514

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VLASKO-VLASOV, V. K.
Material Science Division [ANL] [MSD]

COLAUTO, F.
Material Science Division [ANL] [MSD]
Universidade Federal de São Carlos [São Carlos] [UFSCar]

BUZDIN, Alexandre I.
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

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Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2017, vol. 95, n° 17, p. 174514

American Physical Society

Résumé en anglais

Tuning the polarization of a periodic array of magnetic stripes on top of a superconducting film allows control of Abrikosov vortex motion. Using direct magneto-optical imaging of the vortex patterns, we demonstrate that the proximity of the magnetic stripe ends to the edges of the superconducting film can strongly alter the vortex dynamics. We observe qualitatively different vortex behavior when the stripes overlap with the film edges. From the resulting unique magnetic flux patterns, we calculate the magnetic pinning strength of our stripe array and study effects of the modified edge barrier on vortex guidance and gating that result from different polarizations of the stripes.< Réduire

DOI

http://dx.doi.org/10.1103/PhysRevB.95.174514

Project ANR

Control de courants supraconducteurs via des effets de spin et de champ: fondements pour une électronique non conventionnelle - ANR-15-CE24-0008

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Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798