Magnetoelectric Coupling in epsilon-Fe2O3

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dc.creatorGich, M.
dc.creatorFrontera, C.
dc.creatorRoig, A.
dc.creatorMolins, E.
dc.creatorFontcuberta, J.
dc.creatorBellido, N.
dc.creatorSimon, Ch.
dc.creatorFleta, C.
dc.date2005-09-05
dc.date.accessioned2026-07-07T06:24:35Z
dc.date.available2026-07-07T06:24:35Z
dc.descriptionNanoparticles of the ferrimagnetic epsilon-Fe2O3 oxide have been synthesized by sol-gel method. Here, we report on the measurements of the dielectric permittivity as a function of temperature, frequency and magnetic field. It is found that, coinciding with the transition from collinear ferrimagnetic ordering to an incommensurate magnetic state occurring at about 100 K, there is an abrupt change (about 30 %) of permittivity suggesting the existence of a magnetoelectric coupling in this material. Indeed, magnetic field dependent measurements at 100 K have revealed an increase of the permittivity by about 0.3 % in 6 T. Prospective advantages of epsilon-Fe2O3 as multiferroic material are discussed.
dc.description17 pages, 4 figures, submitted to Nanotechnology
dc.identifierhttps://arxiv.org/abs/cond-mat/0509104
dc.identifierhttp://arxiv.org/abs/cond-mat/0509104
dc.identifierNanotechnology 17 (2006) 687-691
dc.identifierdoi:10.1088/0957-4484/17/3/012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/96593
dc.subjectMaterials Science
dc.titleMagnetoelectric Coupling in epsilon-Fe2O3
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