Crystal growth and dielectric characterization of crystals derived from the solid-solution Ba<sub>(1−<i>x</i>)</sub>Na<sub><i>x</i></sub>Ti<sub>(1−<i>x</i>)</sub>Nb<sub><i>x</i></sub>O<sub>3</sub> (BTNN)
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| hal.structure.identifier | Département de physique | |
| dc.contributor.author | GACEM, Lakhdar | |
| hal.structure.identifier | Unité de Développement de la Technologie du Silicium [UDTS] | |
| dc.contributor.author | OUADJAOUT, Djamel | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | CHAMINADE, Jean-Pierre | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | MAGLIONE, Mario | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | VON DER MÜHLL, Régnault | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | PECHEV, Stanislav | |
| dc.date.issued | 2009 | |
| dc.identifier.issn | 0025-5408 | |
| dc.description.abstractEn | Single crystals of (1 − <i>x</i>)BaTiO<sub>3</sub> + <i>x</i>NaNbO<sub>3</sub> (BTNN) for <i>x</i> = 0.84 were obtained by high temperature solution growth using Na<sub>2</sub>B<sub>4</sub>O<sub>7</sub> as solvent. The room temperature crystal structure of BTNN 16/84-phase was determined from X-ray single crystal diffraction data, in the tetragonal system with space group <i>P</i>4<i>bm</i>. The refinement from 246 independent reflections led to the following parameters: <i>a</i> = <i>b</i> = 5.5845(3) Å, <i>c</i> = 3.9453(2) Å, <i>V</i> = 123.041(11) Å<sup>3</sup>, <i>Z</i> = 2, with final <i>cR</i><sub>wp</sub> = 0.150 and <i>R</i><sub>B</sub> = 0.041. The structure of BTNN 16/84-phase can be described as a three-dimensional framework built up from (Nb–Ti)O<sub>6</sub> octahedra with Na and Ba in the dodecahedral site of perovskite-like type. Some mm<sup>3</sup>-sized crystals have been selected and various dielectric measurements (ferroelectric, pyroelectric, and piezoelectric) have been performed. Transition from paraelectric to ferroelectric state at around 460 K has been observed to be in good agreement with ceramics of closer composition. Dielectric, piezoelectric and pyroelectric measurements on crystal confirm the ferroelectric behaviour of BTNN 16/84. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Oxides | |
| dc.subject.en | Crystal growth | |
| dc.subject.en | Crystal structure | |
| dc.subject.en | Dielectric properties | |
| dc.subject.en | Ferroelectricity | |
| dc.subject.en | Piezoelectricity | |
| dc.subject.en | Phase transition | |
| dc.title.en | Crystal growth and dielectric characterization of crystals derived from the solid-solution Ba<sub>(1−<i>x</i>)</sub>Na<sub><i>x</i></sub>Ti<sub>(1−<i>x</i>)</sub>Nb<sub><i>x</i></sub>O<sub>3</sub> (BTNN) | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.materresbull.2009.07.019 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Materials Research Bulletin | |
| bordeaux.page | 2240-2245 | |
| bordeaux.volume | 44 | |
| bordeaux.issue | 12 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00442636 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00442636v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Materials%20Research%20Bulletin&rft.date=2009&rft.volume=44&rft.issue=12&rft.spage=2240-2245&rft.epage=2240-2245&rft.eissn=0025-5408&rft.issn=0025-5408&rft.au=GACEM,%20Lakhdar&OUADJAOUT,%20Djamel&CHAMINADE,%20Jean-Pierre&MAGLIONE,%20Mario&VON%20DER%20M%C3%9CHLL,%20R%C3%A9gnault&rft.genre=article |
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