Pressure-induced structural transformations in pure and Ru-doped 0.9PbZn(1/3)Nb(2/3)O(3)-0.1PbTiO(3) near the morphotropic phase boundary

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dc.contributorVirginia Techen
dc.contributor.authorWaeselmann, N.en
dc.contributor.authorMaier, B. J.en
dc.contributor.authorMihailova, B.en
dc.contributor.authorAngel, Ross J.en
dc.contributor.authorZhao, J.en
dc.contributor.authorGospodinov, M.en
dc.contributor.authorPaulmann, C.en
dc.contributor.authorRoss, Nancy L.en
dc.contributor.authorBismayer, U.en
dc.contributor.departmentGeosciencesen
dc.date.accessed2013-12-18en
dc.date.accessioned2014-02-11T13:46:01Zen
dc.date.available2014-02-11T13:46:01Zen
dc.date.issued2012-01-17en
dc.description.abstractPressure-induced structural transformations in relaxor-based perovskite-type (ABO(3)) 0.9PbZn(1/3)Nb(2/3)O(3)-0.1PbTiO(3) single crystals which have a very high piezoelectric response were studied by single-crystal x-ray diffraction and Raman spectroscopy at room temperature and pressures up to 18.1 GPa. Changes in the state of long-range order were observed near 1.0, 2.1, and 5.9 GPa. Initially, upon pressure increase, the ferroic deviation of the atomic positions from the cubic structure is reduced, but the ferroelectric twinning is enhanced, and near 1.0 GPa, the intrinsic ferroelectric multiphase domain pattern formed in the as-synthesized crystals is changed. At 2.1 GPa, the system undergoes a phase transition from a ferroelectric to a relaxor state, which exhibits an average cubic structure but still contains polar nanoregions. At 5.9 GPa, a reversible phase transition typical of Pb-based perovskite-type relaxors occurs, namely a cubic-to-antiferrodistortive phase transition resulting in a long-range order of antiphase octahedral tilts. On decompression, the ferroelectric state reappears below 2.1 GPa, and the local atomic structure is fully recovered at ambient pressure, but the final domain texture differs from the initial one. Ruthenium doping on the B site does not influence the pressure-induced structural transformations.en
dc.description.sponsorshipDeutsche Forschungsgemeinschaft MI 1127/2-2, INST 152/460-1, INST 152/526-1en
dc.description.sponsorshipNational Science Foundation EAR-0738692, EAR-1118691en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationWaeselmann, N. ; Maier, B. J. ; Mihailova, B. ; et al., Jan 17, 2012. "Pressure-induced structural transformations in pure and Ru-doped 0.9PbZn(1/3)Nb(2/3)O(3)-0.1PbTiO(3) near the morphotropic phase boundary," PHYSICAL REVIEW B 85(1): 014106. DOI: 10.1103/PhysRevB.85.014106en
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.85.014106en
dc.identifier.issn1098-0121en
dc.identifier.urihttp://hdl.handle.net/10919/25403en
dc.identifier.urlhttp://link.aps.org/doi/10.1103/PhysRevB.85.014106en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectferroelectric single-crystalsen
dc.subjectrelaxor ferroelectricsen
dc.subjectpiezoelectricen
dc.subjectpropertiesen
dc.subjectperovskitesen
dc.subjectPhysicsen
dc.titlePressure-induced structural transformations in pure and Ru-doped 0.9PbZn(1/3)Nb(2/3)O(3)-0.1PbTiO(3) near the morphotropic phase boundaryen
dc.title.serialPhysical Review Ben
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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