Fe interparticle interactions in Fe_{x}Ag_{100?x} granular alloys (2<x<50)

Araújo, José Humberto de; Soares, J. M.; Machado, F. L. A.; Cabral, F. A. O.; Ginani, Marconi Floripe

Fe interparticle interactions in Fe_{x}Ag_{100?x} granular alloys (2<x<50)

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dc.contributor.author	Araújo, José Humberto de
dc.contributor.author	Soares, J. M.
dc.contributor.author	Machado, F. L. A.
dc.contributor.author	Cabral, F. A. O.
dc.contributor.author	Ginani, Marconi Floripe
dc.date.accessioned	2020-06-25T14:09:06Z
dc.date.available	2020-06-25T14:09:06Z
dc.date.issued	2005-11-03
dc.description.resumo	Samples of FexAg100−x, with 2% x50%, were produced using a new preparation route based on the ionic coordination reaction technique. X-ray diffraction and transmission electronic microscopy showed that the samples are granular alloys and that they have a high degree of purity, good homogeneity, small variations in the Fe concentration, and the mean size of the grains was approximately 30 nm for any Fe composition. Magnetization measurements showed that the coercive field of the samples presented a fairly complex behav- ior. It was also observed, by means of time decay of the thermoremanent magnetization, three dynamical regimes. The existence of these regimes are in good agreement with what is expected from the analysis using the Henkel and M plots. In addition, it was observed an onset to a long range magnetic order LRMO in the Fe30Ag70 sample, culminating in a superferromagnetic order in Fe50Ag50	pt_BR
dc.identifier.citation	SOARES, J. M.; MACHADO, F. L. A.; ARAÚJO, J. H. de; CABRAL, F. A. O.; GINANI, M. F.. Fe interparticle interactions in Fe_{x}Ag_{100?x} granular alloys (2<x<50). Physical Review B, [s.l.], v. 72, n. 18, p. 184405, 2005. Disponível em: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.72.184405. Acesso em: 15 maio 2020. http://dx.doi.org/10.1103/physrevb.72.184405.	pt_BR
dc.identifier.doi	10.1103/PhysRevB.72.184405
dc.identifier.issn	2469-9969
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29357
dc.language	en	pt_BR
dc.publisher	American Physical Society	pt_BR
dc.subject	Interparticle	pt_BR
dc.subject	Interactions	pt_BR
dc.subject	Granular	pt_BR
dc.subject	Alloys	pt_BR
dc.title	Fe interparticle interactions in Fe_{x}Ag_{100?x} granular alloys (2<x<50)	pt_BR
dc.type	article	pt_BR