Local polarization switching in the presence of surface-charged defects: microscopic mechanisms and piezoresponse force spectroscopy observations

DC FieldValueLanguage
dc.contributor.authorMorozovska, A. N.
dc.contributor.authorSvechnikov, Sergei V.
dc.contributor.authorEliseev, Eugene A.
dc.contributor.authorRodriguez, Brian J.
dc.contributor.authoret al.
dc.date.accessioned2013-12-19T09:41:54Z
dc.date.available2013-12-19T09:41:54Z
dc.date.copyright2008 The American Physical Societyen
dc.date.issued2008-08
dc.identifier.citationPhysical Review Ben
dc.identifier.urihttp://hdl.handle.net/10197/5200
dc.description.abstractThermodynamic description of probe-induced polarization switching in ferroelectrics in the presence of well-localized surface field defects and their effect on local piezoresponse force spectroscopy measurements is analyzed. Corresponding analytical expressions for the free energy, activation energy, nucleation bias, and nucleus sizes are derived. Both numerical calculations and analytical expressions demonstrate that well-localized field defects significantly affect domain nucleation conditions. The signature of the defects in reproducible piezoresponse hysteresis loop fine structure are identified and compared to experimental observations. Deconvolution of piezoresponse force spectroscopy measurements to extract relevant defect parameters is demonstrated. Proposed approach can be extended to switching in other ferroics, establishing a pathway for the understanding of the thermodynamics and kinetics of phase transitions at a single-defect level.en
dc.description.sponsorshipOther funderen
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.subjectFerroelectrics
dc.subjectNucleation conditions
dc.subjectThermodynamics
dc.subjectKinetics
dc.subjectPhase transitions
dc.subjectSingle-defect
dc.titleLocal polarization switching in the presence of surface-charged defects: microscopic mechanisms and piezoresponse force spectroscopy observationsen
dc.typeJournal Articleen
dc.internal.authorcontactotherbrian.rodriguez@ucd.ie
dc.internal.availabilityFull text availableen
dc.statusPeer revieweden
dc.identifier.volume78en
dc.identifier.issue5en
dc.identifier.doi10.1103/PhysRevB.78.054101-
dc.neeo.contributorMorozovska|A. N.|aut|-
dc.neeo.contributorSvechnikov|Sergei V.|aut|-
dc.neeo.contributorEliseev|Eugene A.|aut|-
dc.neeo.contributorRodriguez|Brian J.|aut|-
dc.neeo.contributoret al.||aut|-
dc.description.othersponsorshipDivision of Materials Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy with Oak Ridge National Laboratory, managed and operated by UT-Battelle, and financial support from National Academy of Science of Ukraine Grant No. N 13-07, joint Russian- Ukrainian Grant No. NASU N 17-Ukr_a (RFBR N 08-02- 90434), Ministry of Science and Education of Ukraine Granten
dc.description.adminAuthor has checked copyrighten
dc.description.adminkpw6/12/13en
dc.internal.rmsid130173963
dc.date.updated2013-11-26T13:38:17Z
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-nd/3.0/ie/en
item.fulltextWith Fulltext-
item.grantfulltextopen-
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