Synchronization of two spin-transfer-driven nano-oscillators coupled via magnetostatic fields
Author
dc.contributor.author
Mancilla-Almonacid, D.
Author
dc.contributor.author
Leon, Alejandro O.
Author
dc.contributor.author
Arias, R. E.
Author
dc.contributor.author
Allende, S.
Author
dc.contributor.author
Altbir, D.
Admission date
dc.date.accessioned
2019-10-15T12:25:21Z
Available date
dc.date.available
2019-10-15T12:25:21Z
Publication date
dc.date.issued
2019
Cita de ítem
dc.identifier.citation
Physical Review E, Volumen 99, Issue 3, 2019,
Identifier
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24700053
Identifier
dc.identifier.issn
24700045
Identifier
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10.1103/PhysRevE.99.032210
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/171661
Abstract
dc.description.abstract
The magnetization dynamics of nano-oscillators may be excited by both magnetic fields and spin-polarized currents. While the dynamics of single oscillators has been well characterized, the synchronization of several ones is not fully understood yet. An analytical and numerical study of the nonlinear dynamics of two magnetostatically coupled spin valves driven by spin-transfer torques is presented under the macrospin approximation. The oscillators interact via magnetostatic fields and exhibit a robust synchronized magnetization motion. We describe the magnetization dynamics of the system using the Landau-Lifshitz-Gilbert-Slonczewski equation. Using a modal decomposition technique, we describe the dynamics, synchronization, and competition of oscillatory modes as a function of the current density, and the geometrical parameters of the setup. Simulations of the Landau-Lifshitz-Gilbert-Slonczewski equation show good agreement with an approximate analytic so