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
Email: mironov@ipmras.ru, tatarsky@ipmras.ru

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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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