Double percolation effects and fractal behavior in magnetic/superconducting hybrids

Perpendicular magnetic anisotropy ferromagnetic/ superconducting (FM/SC) bilayers with a labyrinth domain structure are used to study nucleation of superconductivity on a fractal network, tunable through magnetic history. As clusters of reversed domains appear in the FM layer, the SC film shows a pe...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2013-07
Main Authors: Ruiz-Valdepeñas, L, Velez, M, Valdes-Bango, F, Alvarez-Prado, L M, Martin, J I, Navarro, E, Alameda, J M, Vicent, J L
Format: Article
Language:English
Subjects:
Clusters
Critical field (superconductivity)
Domains
Ferromagnetism
Fractal geometry
Magnetic anisotropy
Nucleation
Percolation
Superconductivity
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Perpendicular magnetic anisotropy ferromagnetic/ superconducting (FM/SC) bilayers with a labyrinth domain structure are used to study nucleation of superconductivity on a fractal network, tunable through magnetic history. As clusters of reversed domains appear in the FM layer, the SC film shows a percolative behavior that depends on two independent processes: the arrangement of initial reversed domains and the fractal geometry of expanding clusters. For a full labyrinth structure, the behavior of the upper critical field is typical of confined superconductivity on a fractal network.
ISSN:2331-8422
DOI:10.48550/arxiv.1307.4878