Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5597
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dc.contributorDepartment of Applied Physics-
dc.contributorDepartment of Mechanical Engineering-
dc.creatorKe, S-
dc.creatorHuang, H-
dc.creatorFan, H-
dc.creatorLee, HK-
dc.creatorZhou, L-
dc.creatorMai, YW-
dc.date.accessioned2014-12-11T08:25:07Z-
dc.date.available2014-12-11T08:25:07Z-
dc.identifier.issn0003-6951-
dc.identifier.urihttp://hdl.handle.net/10397/5597-
dc.language.isoenen_US
dc.publisherAmerican Institute of Physicsen_US
dc.rights© 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in S. M. Ke et al., Appl. Phys. Lett. 101, 082901 (2012) and may be found at http://link.aip.org/link/?apl/101/082901en_US
dc.subjectAgeingen_US
dc.subjectAntiferroelectric materialsen_US
dc.subjectCopperen_US
dc.subjectDielectric hysteresisen_US
dc.subjectDielectric polarisationen_US
dc.subjectFerroelectric switchingen_US
dc.subjectParamagnetic resonanceen_US
dc.subjectPiezoceramicsen_US
dc.subjectPotassium compoundsen_US
dc.subjectSodium compoundsen_US
dc.subjectSpace chargeen_US
dc.titleAntiferroelectric-like properties and enhanced polarization of Cu-doped K₀.₅Na₀.₅NbO₃ piezoelectric ceramicsen_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationAuthor name used in this publication: S. M. Keen_US
dc.description.otherinformationAuthor name used in this publication: H. T. Huangen_US
dc.description.otherinformationAuthor name used in this publication: H. Q. Fanen_US
dc.description.otherinformationAuthor name used in this publication: L. M. Zhouen_US
dc.description.otherinformationAuthor name used in this publication: Y.-W. Maien_US
dc.identifier.spage1-
dc.identifier.epage4-
dc.identifier.volume101-
dc.identifier.issue8-
dc.identifier.doi10.1063/1.4747212-
dcterms.abstractAbnormal evolution of ferroelectric hysteresis (P-E) loops was observed in Cu-doped K₀.₅Na₀.₅NbO₃ (KNN) ceramics. The 1 mol. % Cu-doped fresh sample exhibited double-loop-like characteristics, while the 1.5 and 2 mol. % Cu-doped KNN ceramics showed normal single loops. Electron paramagnetic resonance spectra verified the formation of non-switchable (Cu[sub Nb]‴−V[sub O]••) ′ (DC1) and non-polar (V[sub O]••−Cu [sub Nb]‴−V[sub O]••)• (DC2) defect complexes in these ceramics. According to the experimental results, it is suggested that DC1 would provide the driving force for domain back-switching, leading to the double P-E loops, while DC2 would contribute to the space charges. Dielectric aging behaviors of the samples also supported this mechanism. It is the competition between the DC1 and DC2 defect complexes that induced the observed compositional evolution of P-E loops in the Cu-doped KNN ceramics.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationApplied physics letters, 20 Aug. 2012, v. 101, no. 8, 082901, p. 1-4-
dcterms.isPartOfApplied physics letters-
dcterms.issued2012-08-20-
dc.identifier.isiWOS:000308420800066-
dc.identifier.scopus2-s2.0-84865508409-
dc.identifier.eissn1077-3118-
dc.identifier.rosgroupidr63378-
dc.description.ros2012-2013 > Academic research: refereed > Publication in refereed journal-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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