Slow and fast magneto-optical response of magnetite nanoparticles suspension

DC magnetic field applied to Fe₃O₄; nanoparticle suspension affects its light scattering. Time dependent variations in the light intensity transmitted through a suspension are observed after the magnetic field is switched-on. Two types of variations can be distinguished. Fast res...

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Bibliographic Details
Main Authors: N. Dmitruk, I. Moroz, S. Malynych
Format: Article
Language:English
Published: Accademia Peloritana dei Pericolanti 2011-09-01
Series:Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali
Online Access:http://dx.doi.org/10.1478/C1V89S1P029
Description
Summary:DC magnetic field applied to Fe₃O₄; nanoparticle suspension affects its light scattering. Time dependent variations in the light intensity transmitted through a suspension are observed after the magnetic field is switched-on. Two types of variations can be distinguished. Fast response takes less than millisecond while slow variations occur at the time interval from seconds to hundreds of minutes. Possible mechanisms of these variations are discussed.
ISSN:0365-0359
1825-1242