Ultrafast Vortex-Core Reversal Dynamics in Ferromagnetic Nanodots

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dc.creatorLee, Ki-Suk
dc.creatorGuslienko, Konstantin Y.
dc.creatorLee, Jun-Young
dc.creatorKim, Sang-Koog
dc.date2007-03-21
dc.date.accessioned2026-07-07T08:43:49Z
dc.date.available2026-07-07T08:43:49Z
dc.descriptionTo verify the exact underlying mechanism of ultrafast vortex-core reversal as well as the vortex state stability we conducted numerical calculations of the dynamic evolution of magnetic vortices in Permalloy cylindrical nanodots under an oscillating in-plane magnetic field over a wide range of the frequency and amplitude. The calculated results reveal different kinds of the non-trivial dynamic responses of vortices to the driving external field. In particular, the results offer insight into the 10 ps scale underlying physics of the ulrafast vortex-core reversals driven by small amplitude (~10 Oe) in-plane fields. This work also provides fundamentals of how to manipulate effectively the dynamical switching of the vortex-core orientation.
dc.description18 pages and 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0703538
dc.identifierhttp://arxiv.org/abs/cond-mat/0703538
dc.identifierPhys. Rev. B 76, 174410 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.174410
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/142450
dc.subjectMaterials Science
dc.titleUltrafast Vortex-Core Reversal Dynamics in Ferromagnetic Nanodots
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