Magnetic properties of acicular ultrafine iron particles

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade de São Paulo (USP)
dc.contributorInst Ciência Mat
dc.contributorUniv Antwerp
dc.date.accessioned2014-05-20T15:20:40Z
dc.date.available2014-05-20T15:20:40Z
dc.date.created2014-05-20T15:20:40Z
dc.date.issued2002-09-01
dc.identifierIEEE Transactions on Magnetics. New York: IEEE-Inst Electrical Electronics Engineers Inc., v. 38, n. 5, p. 1907-1909, 2002.
dc.identifier0018-9464
dc.identifierhttp://hdl.handle.net/11449/31913
dc.identifier10.1109/TMAG.2002.802816
dc.identifierWOS:000178867200012
dc.identifier2115942621694174
dc.description.abstractMagnetic properties of acicular (similar to60 and similar to200 nm) iron particles, obtained by reduction of alumina-coated goethite particles, are reported. X-ray diffraction and Mossbauer spectroscopy showed that the particles consist of a alpha-Fe core and a thin surface layer of maghemite. Magnetization data indicated an improvement of similar to28% in the saturation magnetization, coercive field, and squareness for particles with similar to60 nm. This magnetic property enhancement of the present particles, whose size is 40% smaller than those commercially available, could result in a similar decrease of the bit-size for higher density of magnetic media.
dc.languageeng
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relationIEEE Transactions on Magnetics
dc.relation1.467
dc.relation0,488
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectcoercivity
dc.subjectmagnetic recording
dc.subjectmagnetic variable measurements
dc.subjectmetal ultrafine particles
dc.subjectpassivation
dc.titleMagnetic properties of acicular ultrafine iron particles
dc.typeArtículos de revistas


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