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Title

Relaxor behavior in nanostructured Pb(Zn1/3Nb2/3)O3–Pb(Fe1/2Nb1/2)O3–PbTiO3 ceramics

AuthorsAmorín, Harvey CSIC ORCID; Jiménez, Ricardo CSIC ORCID; Hungría, Teresa CSIC; Castro, Alicia CSIC ORCID; Algueró, Miguel CSIC ORCID
Issue DateApr-2009
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 94(15): 152902 (2009)
AbstractThere is controversy about the persistence or not of the relaxor state in the nanoscale. We report here the dielectric properties of nanostructured ceramics of the Pb(Zn1/3Nb2/3)O3–Pb(Fe1/2Nb1/2)O3–PbTiO3 ternary system with an average grain size of 20 nm, which clearly indicate that it persists as long as correlations among polar nanoregions are possible across grain boundaries. Two independent Vogel–Fulcher type relaxations are found in the materials that have a non-negligible width of the size distribution, which are proposed to be associated with intra- and intergranular correlations that show freezing at different temperatures.
Description3 pages, 4 figures, 1 table.
Publisher version (URL)http://dx.doi.org/10.1063/1.3118527
URIhttp://hdl.handle.net/10261/22133
DOI10.1063/1.3118527
ISSN0003-6951
Appears in Collections:(ICMM) Artículos

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