Fe valence fluctuations and magnetoelastic coupling in Pb-based multiferroics perovskites

dc.creatorFraygola, Barbara
dc.creatorMesquita, Alexandre
dc.creatorCoelho, Adelino A.
dc.creatorGarcia, Ducinei
dc.creatorMastelaro, Valmor Roberto
dc.creatorEiras, Jose A.
dc.date.accessioned2014-06-09T20:03:54Z
dc.date.accessioned2018-07-04T16:45:41Z
dc.date.available2014-06-09T20:03:54Z
dc.date.available2018-07-04T16:45:41Z
dc.date.created2014-06-09T20:03:54Z
dc.date.issued2013-02
dc.identifierPhysica Status Solidi A, Weinheim : Wiley-VCH Verlag, v. 210, n. 2, p. 386-390, Feb. 2013
dc.identifier1862-6300
dc.identifierhttp://www.producao.usp.br/handle/BDPI/45331
dc.identifier10.1002/pssa.201228376
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1640005
dc.description.abstractLead-based multiferroics perovskites with nominal compositions Pb(Fe1/2Nb1/2)O3 and Pb(Fe2/3W1/3)O3 were synthesized following a two-stage method. Magnetic proprieties were investigated and correlated to anelastic proprieties, measured by the conventional pulse-echo method. The discussions are focused in the region around 250 K, where magnetoelectroelastic instabilities have been observed. X-ray absorption nearedge structure (XANES) study further indicates that the edge position varies with temperature revealing a fluctuation on the valence of iron ions with the temperature, which can be related to a variation in anelastic and magnetic proprieties.
dc.languageeng
dc.publisherWiley-VCH Verlag
dc.publisherWeinheim
dc.relationPhysica Status Solidi A
dc.rightsCopyright WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
dc.rightsrestrictedAccess
dc.subjectAnelastic
dc.subjectMultiferroics
dc.subjectPFN
dc.subjectPFW
dc.subjectXANES
dc.titleFe valence fluctuations and magnetoelastic coupling in Pb-based multiferroics perovskites
dc.typeArtículos de revistas


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