Tracing the thermal mechanism in femtosecond spin dynamics

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dc.creatorAtxitia, U.
dc.creatorChubykalo-Fesenko, O.
dc.creatorWalowski, J.
dc.creatorMann, A.
dc.creatorMunzenberg, M.
dc.date2009-04-28
dc.date.accessioned2026-07-07T13:09:26Z
dc.date.available2026-07-07T13:09:26Z
dc.descriptionWe compare femtosecond pump-probe experiments in Ni and micromagnetic modelling based on the Landau-Lifshitz-Bloch equation coupled to a two-temperature model, revealing a predominant thermal ultrafast demagnetization mechanism. We show that both spin (femtosecond demagnetization) and electron-phonon (magnetization recovery) rates in Ni increase as a function of the laser pump fluence. The slowing down for high fluences arises from the increased longitudinal relaxation time.
dc.identifierhttps://arxiv.org/abs/0904.4399
dc.identifierhttp://arxiv.org/abs/0904.4399
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/228731
dc.subjectMaterials Science
dc.subjectStatistical Mechanics
dc.titleTracing the thermal mechanism in femtosecond spin dynamics
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