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Article: Transport properties of Pr 0.7Ca 0.3MnO 3/Nb:SrTiO 3 heterojunctions
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TitleTransport properties of Pr 0.7Ca 0.3MnO 3/Nb:SrTiO 3 heterojunctions
 
AuthorsLuo, Z1
Chan, PKL1
Jim, KL1
Leung, CW1
 
KeywordsCMR
Heterojunction
IV characteristics
Transport
 
Issue Date2011
 
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/physb
 
CitationPhysica B: Condensed Matter, 2011, v. 406 n. 15-16, p. 3104-3107 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.physb.2011.05.018
 
AbstractCurrentvoltage (JV) characteristics of epitaxial hetero-junctions composed of Pr 0.7Ca 0.3MnO 3 and Nb:SrTiO 3 were studied under forward and reversed bias conditions. Detailed analysis showed that the JV characteristics of these heterojunctions can be well-fitted by the thermally-assisted tunnelling model. While the dielectric constant of Nb:SrTiO 3 extracted under the forward bias was about one order of magnitude smaller than that of bulk SrTiO 3, the value obtained under reverse bias was very close to that of the bulk SrTiO 3. The result can be explained by the existence of an interface layer on the Nb:SrTiO 3 substrate with a smaller effective dielectric constant. The current finding suggested that the properties of interface layer should be taken into account in order to accurately simulate the JV characteristics of such heterojunctions. © 2011 Elsevier B.V.
 
ISSN0921-4526
2013 Impact Factor: 1.276
2013 SCImago Journal Rankings: 0.625
 
DOIhttp://dx.doi.org/10.1016/j.physb.2011.05.018
 
ISI Accession Number IDWOS:000292302700030
Funding AgencyGrant Number
PolyU1-ZV43
RGC of HKSAR, ChinaPolyU 5013/08P
Funding Information:

This work was supported by PolyU (1-ZV43) and RGC of HKSAR, China (PolyU 5013/08P).

 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorLuo, Z
 
dc.contributor.authorChan, PKL
 
dc.contributor.authorJim, KL
 
dc.contributor.authorLeung, CW
 
dc.date.accessioned2011-09-27T02:58:11Z
 
dc.date.available2011-09-27T02:58:11Z
 
dc.date.issued2011
 
dc.description.abstractCurrentvoltage (JV) characteristics of epitaxial hetero-junctions composed of Pr 0.7Ca 0.3MnO 3 and Nb:SrTiO 3 were studied under forward and reversed bias conditions. Detailed analysis showed that the JV characteristics of these heterojunctions can be well-fitted by the thermally-assisted tunnelling model. While the dielectric constant of Nb:SrTiO 3 extracted under the forward bias was about one order of magnitude smaller than that of bulk SrTiO 3, the value obtained under reverse bias was very close to that of the bulk SrTiO 3. The result can be explained by the existence of an interface layer on the Nb:SrTiO 3 substrate with a smaller effective dielectric constant. The current finding suggested that the properties of interface layer should be taken into account in order to accurately simulate the JV characteristics of such heterojunctions. © 2011 Elsevier B.V.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationPhysica B: Condensed Matter, 2011, v. 406 n. 15-16, p. 3104-3107 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.physb.2011.05.018
 
dc.identifier.doihttp://dx.doi.org/10.1016/j.physb.2011.05.018
 
dc.identifier.epage3107
 
dc.identifier.isiWOS:000292302700030
Funding AgencyGrant Number
PolyU1-ZV43
RGC of HKSAR, ChinaPolyU 5013/08P
Funding Information:

This work was supported by PolyU (1-ZV43) and RGC of HKSAR, China (PolyU 5013/08P).

 
dc.identifier.issn0921-4526
2013 Impact Factor: 1.276
2013 SCImago Journal Rankings: 0.625
 
dc.identifier.issue15-16
 
dc.identifier.scopuseid_2-s2.0-79958018456
 
dc.identifier.spage3104
 
dc.identifier.urihttp://hdl.handle.net/10722/141689
 
dc.identifier.volume406
 
dc.languageeng
 
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/physb
 
dc.publisher.placeNetherlands
 
dc.relation.ispartofPhysica B: Condensed Matter
 
dc.relation.referencesReferences in Scopus
 
dc.subjectCMR
 
dc.subjectHeterojunction
 
dc.subjectIV characteristics
 
dc.subjectTransport
 
dc.titleTransport properties of Pr 0.7Ca 0.3MnO 3/Nb:SrTiO 3 heterojunctions
 
dc.typeArticle
 
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Author Affiliations
  1. Hong Kong Polytechnic University