Investigation of the new P′3-Na<sub>0.60</sub>VO<sub>2</sub> phase: structural and physical properties
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | SZAJWAJ, Olivier | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GAUDIN, Etienne | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| hal.structure.identifier | Centre de Ressources en Microscopie Electronique et Microanalyse [CREMEN] | |
| dc.contributor.author | WEILL, François | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DARRIET, Jacques | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DELMAS, Claude | |
| dc.date.issued | 2009 | |
| dc.identifier.issn | 0020-1669 | |
| dc.description.abstractEn | A new layered phase Na<sub>0.60</sub>VO<sub>2</sub> was synthesized by chemical deintercalation of sodium from the pristine compound O3-NaVO<sub>2</sub>. The Na<sub>0.60</sub>VO<sub>2</sub> compound exhibits a distorted P′3-type oxygen stacking (AABBCC) with an average monoclinic unit cell containing <i>a</i> = 4.9862(14) Å, <i>b</i> = 2.8708(8) Å, <i>c</i> = 5.917(2) Å, and β = 104.36(3)°. A modulated structure was observed by transmission electron microscopy and X-ray diffraction (XRD) measurements. Indexation of the XRD pattern was achieved by using the <b>q</b> vector equal to 0.44<b><i>b</i></b><b>*</b>, and the 4D superspace group <i>C</i>2/<i>m</i> (0 β 0) s0 was then deduced. The specific heat measurement showed a strong correlated system with a γ value of around 20 mJ·mol<sup>−1</sup>·K<sup>−2</sup>. The electrical conductivity shows a semiconductor-like behavior with an activation energy of 0.52 eV. A paramagnetic behavior of the susceptibility is observed below room temperature with a Curie constant equal to <i>C</i> = 0.076 emu·K<sup>−1</sup>·mol<sup>−1</sup>·Oe<sup>−1</sup>. To explain this small value, a model of pseudotriangular clusters of vanadium with a random distribution of V<sup>3+</sup> and V<sup>4+</sup> was considered. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.title.en | Investigation of the new P′3-Na<sub>0.60</sub>VO<sub>2</sub> phase: structural and physical properties | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/ic9008653 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Inorganic Chemistry | |
| bordeaux.page | 9147-9154 | |
| bordeaux.volume | 48 | |
| bordeaux.issue | 19 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00426246 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00426246v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Inorganic%20Chemistry&rft.date=2009&rft.volume=48&rft.issue=19&rft.spage=9147-9154&rft.epage=9147-9154&rft.eissn=0020-1669&rft.issn=0020-1669&rft.au=SZAJWAJ,%20Olivier&GAUDIN,%20Etienne&WEILL,%20Fran%C3%A7ois&DARRIET,%20Jacques&DELMAS,%20Claude&rft.genre=article |
Fichier(s) constituant ce document
| Fichiers | Taille | Format | Vue |
|---|---|---|---|
|
Il n'y a pas de fichiers associés à ce document. |
|||