Origin of high piezoelectric response in A-site disordered morphotropic phase boundary composition of lead-free piezoelectric 0.93(Na0.5Bi0.5)TiO3-0.07BaTiO(3)

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dc.contributorCenter for Energy Harvesting Materials and Systems (CEHMS). Bio-Inspired Materials and Devices Laboratory (BMDL)en
dc.contributorMaterials Science and Engineeringen
dc.contributorInstitute for Critical Technology and Applied Sciencesen
dc.contributorOak Ridge National Laboratory. Chemical and Engineering Materials Divisionen
dc.contributor.authorMaurya, Deepamen
dc.contributor.authorMurayama, Mitsuhiroen
dc.contributor.authorPramanick, A.en
dc.contributor.authorReynolds, William T. Jr.en
dc.contributor.authorAn, Keen
dc.contributor.authorPriya, Shashanken
dc.date.accessed2015-04-24en
dc.date.accessioned2015-05-04T20:06:13Zen
dc.date.available2015-05-04T20:06:13Zen
dc.date.issued2013-03-21en
dc.description.abstractPerovskite piezoelectric compositions near the morphotropic phase boundary (MPB) are known to exhibit high piezoelectric response. In lead-based ABO(3) compound with B-site disorder, the origin of this enhancement has been associated with the presence of an intermediate monoclinic/orthorhombic state that bridges the adjacent ferroelectric rhombohedral and tetragonal phases. However, the origin of high piezoelectric response in lead-free ABO(3) compounds with A-site disorder has not been conclusively established. We describe a microscopic model derived from comparative analyses of high resolution transmission electron microscopy and neutron diffraction that explains the origin of high piezoelectric response in lead-free MPB compositions of 0.93(Na0.5Bi0.5)TiO3-0.07BaTiO3. Direct observation of nanotwins with monoclinic symmetry confirmed the presence of an intermediate bridging phase that facilitates a pathway for polarization reorientation. Monoclinic distortions of an average rhombohedral phase are attributed to localized displacements of atoms along the non-polar directions. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4792729]en
dc.description.sponsorshipNational Science Foundationen
dc.description.sponsorshipU.S. Department of Energy. Office of Basic Energy Sciences - #DE-FG02-07ER46480 (Microscopy analysis)en
dc.description.sponsorshipU.S. Department of Energy. Office of Basic Energy Sciences. Scientific User Facilities Divisionen
dc.format.extent10 pagesen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationJournal of Applied Physics 113, 114101 (2013); doi: 10.1063/1.4792729en
dc.identifier.citationPriya, Shashank (2013). Origin of high piezoelectric response in A-site disordered morphotropic phase boundary composition of lead-free piezoelectric 0.93(Na0.5Bi0.5)TiO3-0.07BaTiO(3). Journal of Applied Physics, 113(11). doi: 10.1063/1.4792729en
dc.identifier.doihttps://doi.org/10.1063/1.4792729en
dc.identifier.issn0021-8979en
dc.identifier.urihttp://hdl.handle.net/10919/51990en
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/jap/113/11/10.1063/1.4792729en
dc.language.isoen_USen
dc.publisherAmerican Institute of Physicsen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectWhiskersen
dc.subjectPhase transitionsen
dc.subjectPiezoelectric fieldsen
dc.subjectFerroelectric phase transitionsen
dc.subjectFerroelectricityen
dc.titleOrigin of high piezoelectric response in A-site disordered morphotropic phase boundary composition of lead-free piezoelectric 0.93(Na0.5Bi0.5)TiO3-0.07BaTiO(3)en
dc.title.serialJournal of Applied Physicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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