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Raman scattering study of β-Sr0.33V2O5 in charge disordered and ordered phase

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dc.contributor.author Popovic, ZV en
dc.contributor.author Kontos, AG en
dc.contributor.author Raptis, YS en
dc.contributor.author Isobe, M en
dc.contributor.author Ueda, Y en
dc.date.accessioned 2014-03-01T01:25:02Z
dc.date.available 2014-03-01T01:25:02Z
dc.date.issued 2006 en
dc.identifier.issn 0953-8984 en
dc.identifier.uri http://hdl.handle.net/123456789/17514
dc.subject Raman Scattering en
dc.subject.classification Physics, Condensed Matter en
dc.subject.other Electric space charge en
dc.subject.other Electrons en
dc.subject.other Order disorder transitions en
dc.subject.other Phase transitions en
dc.subject.other Phonons en
dc.subject.other Raman scattering en
dc.subject.other Spectrum analysis en
dc.subject.other Thermal effects en
dc.subject.other Charge disordered and ordered phase en
dc.subject.other Charge-phonon dynamics en
dc.subject.other Delocalized en
dc.subject.other Raman scattering spectra en
dc.subject.other Strontium compounds en
dc.title Raman scattering study of β-Sr0.33V2O5 in charge disordered and ordered phase en
heal.type journalArticle en
heal.identifier.primary 10.1088/0953-8984/18/32/024 en
heal.identifier.secondary http://dx.doi.org/10.1088/0953-8984/18/32/024 en
heal.identifier.secondary 024 en
heal.language English en
heal.publicationDate 2006 en
heal.abstract Polarized Raman spectra of the strontium vanadium oxide bronze β-Sr0.33V2O5 are measured in the temperature range between 300 and 77K. The charge ordering phase transition at about 165K is characterized by the appearance of new Raman-active modes in the spectra, as well as through an abrupt change of the phonon frequencies and dampings. The Raman scattering spectra of β-Sr0.33V2O5 in the charge disordered phase are in apparent resemblance with those of α′-NaV2O5, which suggests that there is a similar charge-phonon dynamics in both compounds. We also suggest that the electrons are delocalized into V1-O5-V3 orbitals in the mixed valence state of β-Sr0.33V2O5. © 2006 IOP Publishing Ltd. en
heal.publisher IOP PUBLISHING LTD en
heal.journalName Journal of Physics Condensed Matter en
dc.identifier.doi 10.1088/0953-8984/18/32/024 en
dc.identifier.isi ISI:000239558500029 en
dc.identifier.volume 18 en
dc.identifier.issue 32 en
dc.identifier.spage 7779 en
dc.identifier.epage 7787 en


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