Initial cation stoichiometry and current-voltage behavior in Sc-doped calcium copper titanate

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dc.contributor.authorChung, Sung-Yoonko
dc.contributor.authorLee, Sirk-Ihlko
dc.contributor.authorChoi, Jin-Hoonko
dc.contributor.authorChoi, Si-Youngko
dc.date.accessioned2019-05-15T13:27:43Z-
dc.date.available2019-05-15T13:27:43Z-
dc.date.created2019-05-13-
dc.date.issued2006-11-
dc.identifier.citationAPPLIED PHYSICS LETTERS, v.89, no.19-
dc.identifier.issn0003-6951-
dc.identifier.urihttp://hdl.handle.net/10203/261919-
dc.description.abstractIt is demonstrated that either a strong nonlinear or a nearly Ohmic behavior in current-voltage relationship can be distinctively represented in Sc-doped polycrystalline CaCu3Ti4O12, with variation in the initial composition of samples. Through conductive atomic force microscopy and impedance spectroscopy, such a definitive difference in the electrical property was found to depend on the presence of a large electrostatic barrier at the grain boundaries. The effect of Sc ions on the boundary potential barrier and the conductance of single grains is discussed. Findings suggest a different site selectivity of Sc in the lattice in terms of the initial cation stoichiometry.-
dc.languageEnglish-
dc.publisherAMER INST PHYSICS-
dc.titleInitial cation stoichiometry and current-voltage behavior in Sc-doped calcium copper titanate-
dc.typeArticle-
dc.identifier.wosid000241960400033-
dc.identifier.scopusid2-s2.0-33750920544-
dc.type.rimsART-
dc.citation.volume89-
dc.citation.issue19-
dc.citation.publicationnameAPPLIED PHYSICS LETTERS-
dc.identifier.doi10.1063/1.2386922-
dc.contributor.localauthorChung, Sung-Yoon-
dc.contributor.nonIdAuthorLee, Sirk-Ihl-
dc.contributor.nonIdAuthorChoi, Jin-Hoon-
dc.contributor.nonIdAuthorChoi, Si-Young-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordPlusHIGH-DIELECTRIC-CONSTANT-
dc.subject.keywordPlusFORCE MICROSCOPY-
dc.subject.keywordPlusCACU3TI4O12-
dc.subject.keywordPlusCONTACT-
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