Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4037
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dc.contributorDepartment of Applied Physics-
dc.contributorMaterials Research Centre-
dc.creatorZhou, Y-
dc.creatorChan, HK-
dc.creatorLam, CH-
dc.creatorShin, FG-
dc.date.accessioned2014-12-11T08:23:31Z-
dc.date.available2014-12-11T08:23:31Z-
dc.identifier.issn0021-8979-
dc.identifier.urihttp://hdl.handle.net/10397/4037-
dc.language.isoenen_US
dc.publisherAmerican Institute of Physicsen_US
dc.rights© 2005 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 Y. Zhou et al., J. Appl. Phys. 98, 034105 (2005) and may be found at http://link.aip.org/link/?jap/98/034105.en_US
dc.subjectFerroelectric thin filmsen_US
dc.subjectDielectric polarisationen_US
dc.subjectPermittivityen_US
dc.subjectDielectric hysteresisen_US
dc.subjectElectrical conductivityen_US
dc.titleEffects of polarization and permittivity gradients and other parameters on the anomalous vertical shift behavior of graded ferroelectric thin filmsen_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationAuthor name used in this publication: Y. Zhouen_US
dc.description.otherinformationAuthor name used in this publication: C. H. Lamen_US
dc.description.otherinformationAuthor name used in this publication: F. G. Shinen_US
dc.identifier.spage1-
dc.identifier.epage6-
dc.identifier.volume98-
dc.identifier.issue3-
dc.identifier.doi10.1063/1.1996833-
dcterms.abstractWe studied theoretically the dependence of the “polarization offset” on various parameters in compositionally graded ferroelectric thin films. Our model adopts the Landau-Khalatnikov equation to describe hysteresis behavior and takes the time-dependent space-charge-limited conductivity into account to investigate the effects of polarization and permittivity gradients, charge mobilities, and thickness in graded ferroelectric thin films. We found that both polarization and permittivity gradients are requisite for the occurrence of offset phenomena. It is also found that larger gradients of remanent polarization and permittivity, a smaller thickness, and a larger charge mobility can generally enhance the effect of vertical offsets. The qualitative agreement between simulation and experiment further supports our previous notion that the asymmetric conduction current arising as a result of the composition gradient is an important factor leading to the polarization offset phenomenon.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationJournal of applied physics, 1 Aug. 2005, v. 98, no. 3, 034105, p. 1-6-
dcterms.isPartOfJournal of applied physics-
dcterms.issued2005-08-01-
dc.identifier.isiWOS:000231246100080-
dc.identifier.scopus2-s2.0-23944450605-
dc.identifier.eissn1089-7550-
dc.identifier.rosgroupidr28798-
dc.description.ros2005-2006 > 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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