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Do thermal fluctuations influence the recoil loops of nanocomposite magnets?

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Do thermal fluctuations influence the recoil loops of nanocomposite magnets?

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dc.contributor.author Rong, Chuanbing
dc.contributor.author Liu, Yuzi
dc.contributor.author Liu, J. Ping en-US
dc.date.accessioned 2010-08-09T18:13:33Z
dc.date.available 2010-08-09T18:13:33Z
dc.date.issued 2008-07-11 en_US
dc.identifier.uri http://hdl.handle.net/10106/4985
dc.description.abstract An exchange-coupled FePt/Fe3Pt nanocomposite system with well defined hard/soft two-phase morphology was prepared by reducing chemically synthesized FePt/Fe3O4 bimagnetic nanoparticles. It was interesting to observe that the recoil loop openness is strongly dependent on the sweep rate of applied fields. A quantitative analysis shows a linear relation between the openness of recoil loops and the reciprocal activation volume, indicating that the recoil loops are intimately related to thermal fluctuation. The large open area of the recoil loops for nanocomposite magnets compared to that of single phase magnets is attributed to the unstable magnetic moments in the soft phase. en_US
dc.language.iso en_US en_US
dc.publisher American Institute of Physics en_US
dc.subject exchange interactions (electron) en_US
dc.subject ferromagnetic materials en_US
dc.subject iron alloys en_US
dc.subject magnetic moments en_US
dc.subject magnetic particles en-US
dc.subject nanocomposites en_US
dc.subject nanoparticles en_US
dc.subject permanent magnets en_US
dc.subject platinum alloys en-US
dc.title Do thermal fluctuations influence the recoil loops of nanocomposite magnets? en_US
dc.type Article en_US
dc.publisher.department Department of Physics, The University of Texas at Arlington en_US
dc.identifier.externalLink http://link.aip.org/link/APPLAB/v93/i4/p042508/s1 en_US
dc.identifier.externalLinkDescription External link to the original article en_US

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