Synthesis, structure and magnetic properties of the new oxygen-deficient perovskite Na<sub>3</sub>MnV<sub>2</sub>O<sub>7.5</sub>
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | BEN YAHIA, Hamdi | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GAUDIN, Etienne | |
| hal.structure.identifier | Departamento de Quimica Inorgnica | |
| dc.contributor.author | BOULAHYA, Khalid | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DARRIET, Jacques | |
| dc.date.issued | 2011 | |
| dc.identifier.issn | 1293-2558 | |
| dc.description.abstractEn | The new ternary vanadate Na<sub>3</sub>MnV<sub>2</sub>O<sub>7.5</sub> has been synthesized by solid state reaction route. Its crystal structure was determined from both powder X-ray diffraction data and high-resolution transmission electron microscopy (HRTEM) analysis. Na<sub>3</sub>MnV<sub>2</sub>O<sub>7.5</sub> (<i>P</i>2<i>/c</i>, <i>a</i> = 7.4004(4) Å, <i>b</i> = 5.6065(3) Å, <i>c</i> = 17.0876(11) Å, <i>β</i> = 90.0114(2) °, and <i>Z</i> = 4) crystallizes with a new type of oxygen-deficient perovskite ABO<sub>3-δ</sub> (<i>δ</i> = 1/2) with the sodium atoms occupying the A site and the vanadium and manganese atoms perfectly ordered in the B site. In Na<sub>3</sub>MnV<sub>2</sub>O<sub>7.5</sub> the manganese and the vanadium atoms are octahedral and tetrahedral coordinated, respectively. The MnO<sub>6</sub> and VO<sub>4</sub> polyhedra share edges and form a perovskite 3D-framework with high disorder of the oxygen atoms. HRTEM confirmed this structural model. Na<sub>3</sub>MnV<sub>2</sub>O<sub>7.5</sub> was characterized by magnetic susceptibility and specific heat measurements. It is antiferromagnetic with no magnetic ordering down to 2 K. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject | Crystal structure | |
| dc.subject | Magnetic measurements | |
| dc.subject | Perovskite | |
| dc.subject | Vanadates | |
| dc.subject | HRTEM | |
| dc.title.en | Synthesis, structure and magnetic properties of the new oxygen-deficient perovskite Na<sub>3</sub>MnV<sub>2</sub>O<sub>7.5</sub> | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.solidstatesciences.2011.03.012 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Solid State Sciences | |
| bordeaux.page | 1235-1241 | |
| bordeaux.volume | 13 | |
| bordeaux.issue | 6 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00604732 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00604732v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Solid%20State%20Sciences&rft.date=2011&rft.volume=13&rft.issue=6&rft.spage=1235-1241&rft.epage=1235-1241&rft.eissn=1293-2558&rft.issn=1293-2558&rft.au=BEN%20YAHIA,%20Hamdi&GAUDIN,%20Etienne&BOULAHYA,%20Khalid&DARRIET,%20Jacques&rft.genre=article |
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