DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chung, Sung-Yoon | ko |
dc.contributor.author | Kim, ID | ko |
dc.contributor.author | Kang, Suk-Joong L | ko |
dc.date.accessioned | 2013-03-04T14:03:48Z | - |
dc.date.available | 2013-03-04T14:03:48Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2004-11 | - |
dc.identifier.citation | NATURE MATERIALS, v.3, no.11, pp.774 - 778 | - |
dc.identifier.issn | 1476-1122 | - |
dc.identifier.uri | http://hdl.handle.net/10203/82877 | - |
dc.description.abstract | The discovery of a giant dielectric constant(1-3) of 10(5) in CaCu3Ti4O12 has increased interest in this perovskite-type oxide. Here we demonstrate that, in addition to high permittivity, CaCu3Ti4O12 has remarkably strong nonlinear current-voltage characteristics without the addition of any dopants. An intrinsic electrostatic barrier at the grain boundaries is responsible for the unusual nonlinear behaviour. The nonlinear coefficient of CaCu3Ti4O12 reaches a value of 900, which is even greater than that of the varistor material(4) ZnO. As a result, CaCu3Ti4O12 may lead to efficient switching and gas-sensing devices. | - |
dc.language | English | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Strong nonlinear current-voltage behaviour in perovskite-derivative calcium copper titanate | - |
dc.type | Article | - |
dc.identifier.wosid | 000224786800016 | - |
dc.identifier.scopusid | 2-s2.0-16544374501 | - |
dc.type.rims | ART | - |
dc.citation.volume | 3 | - |
dc.citation.issue | 11 | - |
dc.citation.beginningpage | 774 | - |
dc.citation.endingpage | 778 | - |
dc.citation.publicationname | NATURE MATERIALS | - |
dc.identifier.doi | 10.1038/nmat1238 | - |
dc.contributor.localauthor | Chung, Sung-Yoon | - |
dc.contributor.localauthor | Kang, Suk-Joong L | - |
dc.contributor.nonIdAuthor | Kim, ID | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | HIGH-DIELECTRIC-CONSTANT | - |
dc.subject.keywordPlus | ZINC-OXIDE VARISTORS | - |
dc.subject.keywordPlus | ELECTRICAL-PROPERTIES | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | CACU3TI4O12 | - |
dc.subject.keywordPlus | CERAMICS | - |
dc.subject.keywordPlus | MICROSCOPY | - |
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