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Short-range order and diffusion processes in the Na1-xBixF1+2x anion-excess solid solution
| hal.structure.identifier | Department of Chemistry, Faculty of Science | |
| dc.contributor.author | EL OMARI, Malika | |
| hal.structure.identifier | Department of Chemistry, Faculty of Science | |
| dc.contributor.author | EL OMARI, Mohamed | |
| hal.structure.identifier | Department of Chemistry, Faculty of Science | |
| dc.contributor.author | ABAOUZ, A. | |
| hal.structure.identifier | Department of Chemistry, Faculty of Science | |
| dc.contributor.author | YACOUBI, A. | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | RÉAU, Jean-Maurice | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | SÉNÉGAS, Jean | |
| dc.date.issued | 2002 | |
| dc.identifier.issn | 0167-577X | |
| dc.description.abstractEn | The F− diffusion processes within the anion-excess solid solution Na1−xBixF1+2x with fluorite-type structure have been studied by 19F-NMR investigation. Two types of fluoride ions, Fn and F′, are distinguished in the 19F-NMR spectra of rigid lattice at low temperature (T=175 K) and the distribution of fluoride ions among the two sites is determined by deconvolution of the experimental spectra. The short-range order in these materials is analogous to the clustering process observed in the K1−xBixF1+2x solid solution. It corresponds to an order between cubic entities and cubooctaedral clusters. Two diffusion mechanisms are identified on both sides of a Tr temperature. The first one at TTr to an F− exchange between cubic and cubooctaedral clusters. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Diffusion | |
| dc.subject.en | NMR | |
| dc.subject.en | Fluorite-type structure | |
| dc.subject.en | Clustering | |
| dc.title.en | Short-range order and diffusion processes in the Na1-xBixF1+2x anion-excess solid solution | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/S0167-577X(01)00462-1 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Materials Letters | |
| bordeaux.page | 138-144 | |
| bordeaux.volume | 53 | |
| bordeaux.issue | 3 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00818186 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00818186v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Materials%20Letters&rft.date=2002&rft.volume=53&rft.issue=3&rft.spage=138-144&rft.epage=138-144&rft.eissn=0167-577X&rft.issn=0167-577X&rft.au=EL%20OMARI,%20Malika&EL%20OMARI,%20Mohamed&ABAOUZ,%20A.&YACOUBI,%20A.&R%C3%89AU,%20Jean-Maurice&rft.genre=article |
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