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Field dependence of glassy freezing in a relaxor ferroelectric

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dc.contributorVirginia Techen
dc.contributor.authorDelgado, Miguelen
dc.contributor.authorColla, Eugene V.en
dc.contributor.authorGriffin, P.en
dc.contributor.authorWeissman, Michael B.en
dc.contributor.authorViehland, Dwight D.en
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.date.accessed2013-12-18en
dc.date.accessioned2014-02-11T13:45:56Zen
dc.date.available2014-02-11T13:45:56Zen
dc.date.issued2009-04-23en
dc.description.abstractMultifrequency susceptibility measurements on the perovskite relaxor ferroelectric (PbMg(1/3)Nb(2/3)O(3))(0.88)(PbTiO(3))(0.12) were performed at various strengths of dc electric field applied along the [111] direction. The temperature-frequency dependences fit the Vogel-Fulcher form, allowing the extraction of a frequency-independent glassy freezing temperature. These Vogel-Fulcher temperatures showed significant reductions in applied fields, following an empirical Gabay-Toulouse form, similar to vector spin glasses. The magnitude of the sensitivity indicates that the glassy state is formed by interactions among the same entities which account for the susceptibility, i.e., the polar nanoregions. That interpretation is supported by other data showing a loss of Vogel-Fulcher behavior in a powder sample of PbMg(1/3)Nb(2/3)O(3), with grains too small to support large-scale internanoregion cooperativity.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationDelgado, Matthew ; Colla, Eugene V. ; Griffin, Philip ; et al., Apr 2009. "Field dependence of glassy freezing in a relaxor ferroelectric," PHYSICAL REVIEW B 79(14): 140102. DOI: 10.1103/PhysRevB.79.140102en
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.79.140102en
dc.identifier.issn1098-0121en
dc.identifier.urihttp://hdl.handle.net/10919/25374en
dc.identifier.urlhttp://link.aps.org/doi/10.1103/PhysRevB.79.140102en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectLead compoundsen
dc.subjectOptical susceptibilityen
dc.subjectRelaxor ferroelectricsen
dc.subjectSpin-glassen
dc.subjectCrystalsen
dc.subjectRelaxationsen
dc.subjectScatteringen
dc.subjectPhysicsen
dc.titleField dependence of glassy freezing in a relaxor ferroelectricen
dc.title.serialPhysical Review Ben
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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