Abstract
Superconducting vortices and magnetic domain patterns’ evolution in the superconductor-ferromagnet (SC/FM) hybrid bilayer are investigated within the Ginzburg—Landau (GL) theory of superconductivity, in combination with the Landau—Lifshitz—Gilbert (LLG) equation of ferromagnetism. Magnetic domain patterns in the ferromagnetic thin film and the vortices’ nucleation in the superconducting layer for the hybrid bilayer, subjected to perpendicular magnetic fields, are obtained by numerical simulations. A dynamical evolution picture of the magnetic domain patterns and the associated superconducting vortices’ nucleation are clearly shown. The effect of geometry parameters and physical parameters on the magnetic domain and superconducting vortex evolution are discussed. The magnetization curve of the SC film has also been illustrated. We found that the vortex dynamic behavior of the superconducting film changes substantially, and the correlated magnetic hysteresis loss is significantly reduced due to the presence of the ferromagnetic thin layer. In addition, the spontaneous vortex-antivortex (V-AV) pairs’ nucleation in the hybrid bilayer are investigated.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
