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Anomalous change in leakage and displacement currents after electrical poling on lead-free ferroelectric ceramics

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dc.contributor.authorBorkar, H.
dc.contributor.authorTomar, M.
dc.contributor.authorGupta, V.
dc.contributor.authorScott, James Floyd
dc.contributor.authorKumar, A.
dc.date.accessioned2015-10-27T16:10:00Z
dc.date.available2015-10-27T16:10:00Z
dc.date.issued2015-09-21
dc.identifier.citationBorkar , H , Tomar , M , Gupta , V , Scott , J F & Kumar , A 2015 , ' Anomalous change in leakage and displacement currents after electrical poling on lead-free ferroelectric ceramics ' , Applied Physics Letters , vol. 107 , no. 12 . https://doi.org/10.1063/1.4931696en
dc.identifier.issn0003-6951
dc.identifier.otherPURE: 226712760
dc.identifier.otherPURE UUID: 69b8fcaa-5b8f-4bec-8796-a7048b3e48b8
dc.identifier.otherScopus: 84942456264
dc.identifier.otherWOS: 000361832600047
dc.identifier.urihttps://hdl.handle.net/10023/7700
dc.descriptionA.K. acknowledges the CSIR-MIST (PSC-0111) project for their financial assistance. Hitesh Borkar would like to acknowledge the UGC (SRF) to provide fellowship to carry out Ph.D. program.en
dc.description.abstractWe report the polarization, displacement current, and leakage current behavior of a trivalent nonpolar cation (Al3+) substituted lead free ferroelectric (Na0.46Bi0.46-xAlxBa0.08)TiO3 (NBAT-BT) (x = 0, 0.05, 0.07 and 0.10) electroceramics with tetragonal phase and P4 mm space group symmetry. Almost, three orders of magnitude decrease in leakage current were observed under electrical poling, which significantly improves microstructure, polarization, and displacement current. Effective poling neutralizes the domain pinning, traps charges at grain boundaries and fills oxygen vacancies with free charge carriers in matrix, thus saturated macroscopic polarization in contrast to that in unpoled samples. E-poling changes "bananas" type polarization loops to real ferroelectric loops.
dc.language.isoeng
dc.relation.ispartofApplied Physics Lettersen
dc.rights© 2015 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at http://dx.doi.org/10.1063/1.4931696en
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQCen
dc.titleAnomalous change in leakage and displacement currents after electrical poling on lead-free ferroelectric ceramicsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1063/1.4931696
dc.description.statusPeer revieweden


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