dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorCNRS
dc.contributorUniversidade de São Paulo (USP)
dc.date.accessioned2018-11-26T17:55:37Z
dc.date.available2018-11-26T17:55:37Z
dc.date.created2018-11-26T17:55:37Z
dc.date.issued2015-08-15
dc.identifierJournal Of Alloys And Compounds. Lausanne: Elsevier Science Sa, v. 640, p. 355-361, 2015.
dc.identifier0925-8388
dc.identifierhttp://hdl.handle.net/11449/164687
dc.identifier10.1016/j.jallcom.2015.04.015
dc.identifierWOS:000354195600054
dc.identifierWOS000354195600054.pdf
dc.description.abstractIn this study, the electronic and local structures of Pb1-xBaxZr0.40Ti0.60O3 ferroelectric ceramic samples were characterized using X-ray absorption near-edge structure (XANES) measurements. The analysis of XANES spectra collected at the Ti K-and L-edges showed that the substitution of Pb by Ba leads to a decrease in the local distortion around the Ti atoms in the TiO6 octahedron. The analysis of O K-edge XANES spectra and density of states ab initio calculations showed that the hybridization between the O 2p and Pb 6sp states is related to the displacement of Ti atoms in the TiO6 octahedra. Based on these results, it is possible to determine that the degree of ferroelectricity in these samples and the manifestation of relaxor behavior are directly related to the weakening of O 2p and Pb 6sp hybridization. (C) 2015 Elsevier B.V. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationJournal Of Alloys And Compounds
dc.relation1,020
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectFerroelectrics
dc.subjectRelaxor
dc.subjectX-ray absorption
dc.subjectPerovskite
dc.subjectLead zirconate titanate
dc.subjectPBZT
dc.titleXANES measurements probing the local order and electronic structure of Pb1-xBaxZr0.40Ti0.60O3 ferroelectric materials
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución