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Field enhanced bulk conductivity of acceptor-doped BaTi1−xCaxO3−x ceramics

dc.contributor.authorMasó, Nahum
dc.contributor.authorPrades Tena, Marta
dc.contributor.authorBeltrán Mir, Héctor
dc.contributor.authorCordoncillo, Eloisa
dc.contributor.authorSinclair, Derek C.
dc.contributor.authorWest, Anthony R.
dc.date.accessioned2012-01-19T08:59:26Z
dc.date.available2012-01-19T08:59:26Z
dc.date.issued2010
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/10234/30538
dc.description.abstractThe electrical properties of Ca-doped BaTiO3 are very different when Ca substitutes onto Ba or Ti sites. The p-type semiconductivity of Ti-substituted ceramics increases reversibly by one to two orders of magnitude under a dc-bias voltage of 􏰅100 V cm−1, whereas Ba-substituted ceramics show little sensitivity to a dc bias. This increase in BaTi1−xCaxO3−x, studied over the temperature range 150–600 °C, is independent of electrode material and atmosphere and is attributed to ionization of underbonded O2− ions adjacent to acceptor-doped Ca2+ ions.
dc.format.extent3 p.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherAmerican Institute of Physics
dc.relation.isPartOfApplied Physics Letters, vol. 97, no. 6 (2010)
dc.rights© American Institute of Physics
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/*
dc.subjectBarium compounds
dc.subjectCeramics
dc.subjectElectrical conductivity
dc.titleField enhanced bulk conductivity of acceptor-doped BaTi1−xCaxO3−x ceramics
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doihttp://dx.doi.org/10.1063/1.3476355
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.relation.publisherVersionhttps://aip.scitation.org/doi/10.1063/1.3476355
dc.type.versioninfo:eu-repo/semantics/publishedVersion


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