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hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorFLAMBARD, Alexandrine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVIDEAU, Jean-Jacques
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorDELEVOYE, Laurent
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARDINAL, Thierry
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLABRUGÈRE, Christine
hal.structure.identifierThe College of Optics and Photonics [Orlando] [CREOL]
dc.contributor.authorRIVERO, Clara
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorCOUZI, Michel
hal.structure.identifierUnité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
dc.contributor.authorMONTAGNE, Lionel
dc.date.issued2008
dc.identifier.issn0022-3093
dc.description.abstractEnThe structural description of xNb2O5–(1 − x)(NaPO3) (0 less-than-or-equals, slant x less-than-or-equals, slant 0.40) glass network is reported through high-field (18.8 T) 17O and 93Nb nuclear magnetic resonance, O1s X-ray photoelectron spectroscopy and Raman spectroscopy. The different oxygen sites (POP, PONa, NbOP and NbONb) are resolved on the spectra, their relative proportion determined and compared to indirect calculations obtained from the decomposition of 31P NMR spectra. A good agreement is obtained, thus confirming the formation of the Nb(OP)6−y(ONb)y units with increasing y leading to the clusterization of NbO6 octahedra, mainly for x > 0.2, which is related to the incomplete dissociation of Nb2O5 in the NaPO3 melt. The formation of these clusters is responsible for the large increase of the nonlinear optical properties, mainly due to the high polarizability of the Nb–O–Nb bond.
dc.language.isoen
dc.publisherElsevier
dc.subject.enPhosphates
dc.subject.enNMR
dc.subject.enMAS-NMR and NQR
dc.subject.enStructure
dc.subject.enXPS
dc.title.enStructure and nonlinear optical properties of sodium–niobium phosphate glasses
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jnoncrysol.2008.03.017
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Non-Crystalline Solids
bordeaux.page3540-3547
bordeaux.volume354
bordeaux.issue30
bordeaux.peerReviewedoui
hal.identifierhal-00289519
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00289519v1
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