Physics of the Solid State
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Synchronization of auto-oscillations of exchange-coupled magnetic vortices
Mironov V.L.
1, Tatarskiy D.A.1,2, Fraerman A.A.1
1Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod, Russia
2Lobachevsky State University, Nizhny Novgorod, Russia
2Lobachevsky State University, Nizhny Novgorod, Russia
Email: mironov@ipmras.ru, tatarsky@ipmras.ru
The results of micromagnetic modeling of the gyrotropic mode of magnetization auto-oscillations in overlapping ferromagnetic disks under the action of a spin-polarized current are presented. It is shown that the exchange interaction between disks significantly increases the binding energy of magnetic vortices and, as a consequence, reduces the dephasing of the vortex core gyration in neighboring disks. Keywords: vortex nanooscillator, auto-oscillations, synchronization, exchange coupling.
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