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Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4733982
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dc.titleNegative capacitance induced by redistribution of oxygen vacancies in the fatigued BiFeO 3-based thin film
dc.contributor.authorKe, Q.
dc.contributor.authorLou, X.
dc.contributor.authorYang, H.
dc.contributor.authorKumar, A.
dc.contributor.authorZeng, K.
dc.contributor.authorWang, J.
dc.date.accessioned2014-10-07T09:08:29Z
dc.date.available2014-10-07T09:08:29Z
dc.date.issued2012-07-09
dc.identifier.citationKe, Q., Lou, X., Yang, H., Kumar, A., Zeng, K., Wang, J. (2012-07-09). Negative capacitance induced by redistribution of oxygen vacancies in the fatigued BiFeO 3-based thin film. Applied Physics Letters 101 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4733982
dc.identifier.issn00036951
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/85478
dc.description.abstractThe capacitance dispersion in La and Mg co-substituted BiFeO 3 thin film has been studied at different stages of polarization switching. A negative capacitance (NC) behavior is observed in the sample that is fatigued above 10 9 switching cycles. The origin of the NC is investigated through analyzing relaxation processes and charge transport kinetics by admittance spectroscopy. An activation energy of ∼0.6 eV and a zero field mobility μ 0 5.33 ± 0.02 × 10 - 13 m 2 / Vs are thus obtained. A physical mechanism is proposed to explain this behavior. It involves a redistribution of oxygen vacancies, which are trapped at the film/electrode interface during the fatigue process. © 2012 American Institute of Physics.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.4733982
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.description.doi10.1063/1.4733982
dc.description.sourcetitleApplied Physics Letters
dc.description.volume101
dc.description.issue2
dc.description.page-
dc.description.codenAPPLA
dc.identifier.isiut000306360600061
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