Synchronization of the Self-Oscillations of the Magnetic Vortices in Exchange-Coupled Ferromagnetic Disks

The low-frequency (gyrotropic) self-oscillations of the magnetic vortices in interacting ferromagnetic disks, which are caused by a spin-polarized current, are studied by numerical simulation. Various magnetization oscillation modes depending on the configuration of the magnetic state of the system...

Full description

Saved in:
Bibliographic Details
Published in:Journal of experimental and theoretical physics 2023-03, Vol.136 (3), p.321-329
Main Authors: Tatarskiy, D. A., Mironov, V. L., Fraerman, A. A.
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Disks
Disorder
Elementary Particles
Ferromagnetism
Magnetization
Nonuniformity
Order
Oscillation modes
Particle and Nuclear Physics
Phase Transition in Condensed System
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Simulation methods
Solid State Physics
Synchronism
Vortices
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The low-frequency (gyrotropic) self-oscillations of the magnetic vortices in interacting ferromagnetic disks, which are caused by a spin-polarized current, are studied by numerical simulation. Various magnetization oscillation modes depending on the configuration of the magnetic state of the system are considered. The influence of the pumping current nonuniformity on the phase difference of the vortex gyration in neighboring disks is investigated. The overlap of the disks is shown to increase the interaction between the vortices and, hence, to decrease the dephasing of the vortex core oscillations. The prospects of using overlapping disks to ensure phase synchronization of arrays of spin-transfer vortex oscillators are discussed.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776123030172