Stochastic dynamics of magnetization in a ferromagnetic nanoparticle out of equilibrium

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dc.creatorBasko, D. M.
dc.creatorVavilov, M. G.
dc.date2008-09-16
dc.date.accessioned2026-07-07T12:57:22Z
dc.date.available2026-07-07T12:57:22Z
dc.descriptionWe consider a small metallic particle (quantum dot) where ferromagnetism arises as a consequence of Stoner instability. When the particle is connected to electrodes, exchange of electrons between the particle and the electrodes leads to a temperature- and bias-driven Brownian motion of the direction of the particle magnetization. Under certain conditions this Brownian motion is described by the stochastic Landau-Lifshitz-Gilbert equation. As an example of its application, we calculate the frequency-dependent magnetic susceptibility of the particle in a constant external magnetic field, which is relevant for ferromagnetic resonance measurements.
dc.description15 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0809.2611
dc.identifierhttp://arxiv.org/abs/0809.2611
dc.identifierPhys. Rev. B 79, 064418 (2009).
dc.identifierdoi:10.1103/PhysRevB.79.064418
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224907
dc.subjectMesoscale and Nanoscale Physics
dc.titleStochastic dynamics of magnetization in a ferromagnetic nanoparticle out of equilibrium
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