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Structurally restricted phase transitions in VO2(B) and their impact on transport properties

hal.structure.identifierIREET, University of Bolton
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierInstitutul National de Cercetare - Dezvoltare Pentru Electrochimie si Materie Condensata [INCEMC]
dc.contributor.authorPOPURI, Srinivasa Rao
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorARTEMENKO, Alla
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDECOURT, Rodolphe
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorJOSSE, Michaël
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHUNG SEU, U-Chan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMICHAU, Dominique
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAGLIONE, Mario
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVILLESUZANNE, Antoine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPOLLET, Michaël
dc.date.issued2015
dc.identifier.issn1932-7447
dc.description.abstractEnDespite the relatively simple composition and numerous applications of layered VO2(B), several issues such as effect of electron correlations and the nature of its metal–insulator transition remain unresolved due to the low irreversible phase transition temperature. We have overcome this challenge by using spark plasma sintering and reporting its reliable electronic transport properties. All our transport, magnetic and thermal data, converge in favor of an interesting multiphase nature of VO2(B): low temperature phase (insulating and magnetically ordered), an intermediate temperature phase (insulating), and a high temperature phase (presumably metallic with strong electron correlations) coexist. The coexistence domain for these three phases is broad and extends over about 60 K around 235 K. The low temperature phase with spin singlets is always associated with, at least one another phase and becomes dominant below 200 K. The high temperature phase is present over the full temperature range and exists alone above room temperature. We believe that our results will give considerable insight into understand this complex VO2(B) material and widen up its future applications.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.title.enStructurally restricted phase transitions in VO2(B) and their impact on transport properties
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.jpcc.5b07826
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Physical Chemistry C
bordeaux.page25085–25092
bordeaux.volume119
bordeaux.issue44
bordeaux.peerReviewedoui
hal.identifierhal-01225684
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01225684v1
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