Vortex-antivortex configurations in a superconducting film due to a ferromagnetic strip: Edge barrier versus annihilation barrier
G. M. Maksimova, R. M. Ainbinder, I. L. Maksimov
DOI 10.1103/PhysRevB.73.214515 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Magnetic response of a hybrid structure containing a thin ferromagnetic (FM) strip, placed above a superconducting (SC) film of finite width, is studied. It is shown that depending on the system parameters the maximum value of the Meissner current may be reached either at the SC film edges or at its symmetry axis. Total energy of the symmetrical vortex-antivortex (VA) configuration (which is only possible due to the symmetry of a system) is calculated depending on the FM magnetization. It is found that the emergence of the VA pairs is controlled by two potential barriers: A Bean-Livingston-like edge barrier and the “annihilation” barrier. The former one controls the VA pair entry from the SC film edges, the latter determines the creation of the VA pair at the center of the SC film. The threshold magnetization is obtained at which the transition of the SC film from the Meissner state to the VA-pair-formed mixed state, takes place. The conditions are found at which the VA pair is not allowed to exist inside the SC film.
Similar papers
Edge barrier pinning for a single superconducting vortex
similarity 0.89D. Kouzoudis et al.
Source status unknown — claims are unverified
Vortex Lattices in Stripe Domains of Ferromagnet/Superconductor Bilayer
similarity 0.88Serkan Erdin · 2005 · arXiv:cond-mat/0509782
Source status unknown — claims are unverified
Vortex configurations and metastability in mesoscopic superconductors
similarity 0.88Clécio C. de Souza Silva et al. · 2004 · arXiv:cond-mat/0403077
Source status unknown — claims are unverified
Co-existence of the Meissner and vortex-state on a superconducting spherical shell
similarity 0.88J. Tempere et al. · 2009 · arXiv:0903.2800
Source status unknown — claims are unverified
Edge tunneling of vortices in superconducting thin films
similarity 0.88Roberto Iengo & Giancarlo Jug
Source status unknown — claims are unverified
Vortex-induced dissipation in narrow current-biased thin-film superconducting strips
similarity 0.87L. N. Bulaevskii et al. · 2011 · arXiv:1102.5130
Source status unknown — claims are unverified