Edge vortices and C-state in vortex spin torque nanooscillators

[Display omitted] We investigate coupled dynamics of two-vortex spin torque nanooscilators using micromagnetic simulation. Dynamic transformation of the vortex structure leading to formation of the C-states in this system has been studied. We demonstrate dynamic formation of the edge vortices, which...

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Veröffentlicht in:	Journal of magnetism and magnetic materials 2022-11, Vol.562, p.169758, Article 169758
Hauptverfasser:	Stepanov, S.V., Nazarov, V.N., Zvezdin, K.A., Ekomasov, E.G.
Format:	Artikel
Sprache:	eng
Schlagworte:	C- state Magnetic vortices Spin torque effect Vortex spin-transfer nano-oscillator
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Zusammenfassung:	[Display omitted] We investigate coupled dynamics of two-vortex spin torque nanooscilators using micromagnetic simulation. Dynamic transformation of the vortex structure leading to formation of the C-states in this system has been studied. We demonstrate dynamic formation of the edge vortices, which until now have been observed only in the presence of the Dzyaloshinskii field or in the presence of an inhomogeneous external field.
ISSN:	0304-8853
DOI:	10.1016/j.jmmm.2022.169758