Magnetic mapping of defects in type-II superconductors
MIRONOV, S.
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
DEVIZOROVA, Zh.
Kotelnikov Institute of Radio Engineering and Electronics [IRE]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
Voir plus >
Kotelnikov Institute of Radio Engineering and Electronics [IRE]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
MIRONOV, S.
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
DEVIZOROVA, Zh.
Kotelnikov Institute of Radio Engineering and Electronics [IRE]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
< Réduire
Kotelnikov Institute of Radio Engineering and Electronics [IRE]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
Langue
en
Article de revue
Ce document a été publié dans
Applied Physics Letters. 2016-05-23, vol. 108, n° 21, p. 212602 (1-4)
American Institute of Physics
Résumé en anglais
Recently it was discovered that the non-uniform Meissner current flowing around the pinning sites in the type-II superconductor induces the unconventional vortex-antivortex pairs with the non-quantized magnetic flux [J.-Y. ...Lire la suite >
Recently it was discovered that the non-uniform Meissner current flowing around the pinning sites in the type-II superconductor induces the unconventional vortex-antivortex pairs with the non-quantized magnetic flux [J.-Y. Ge, et al., Nat. Commun. 6, 6573 (2015)]. Here we provide the theory of this phenomenon showing that the vortex-like structures originate from the perturbation of the current streamlines by the non-superconducting defect, which results in the generation of the localized magnetic field. The position and the shape of such vortex dipoles are shown to be very sensitive to the defect form. Thus, applying the external magnetic field or current to the superconductor and using, e.g., the high-resolution scanning Hall microscope to measure the stray magnetic field one can plot the map containing the information about the position of the defects and their shape.< Réduire
Project ANR
Etats de Majorana et d'Andreev dans des circuits hybrides combinant des matériaux magnétiques et supraconducteurs - ANR-12-BS04-0016
Origine
Importé de halUnités de recherche