Synthèse de nouveaux matériaux multiferroïques au sein de la famille des bronzes quadratiques de formule Ba2LnFeNb4O15

Abstract : Multiferroics are materials which possess several ferroic properties, e.g. ferroelectricity, ferromagnetism. The search for multiferroics arises a growing activity, due to their potential applications in memories, spintronic... Yet the materials displaying the adequate properties for future application are very few. Niobates with the formula Ba2LnFeNb4O15, potentially ferroelectric and ferromagnetic, have been synthesized. The magnetic properties of the ceramics are related to a secondary phase, thus making them composite multiferroics. Their crystal-chemical flexibility allows for the composites properties tuning by cationic substitutions into the TTB framework. To complete the crystal-chemical study, the growth of TTB single-crystals was successfully engaged.
Document type :
Theses
Material chemistry. Université Sciences et Technologies - Bordeaux I, 2009. French


https://tel.archives-ouvertes.fr/tel-00464154
Contributor : Stéphane Toulin <>
Submitted on : Tuesday, March 16, 2010 - 11:01:35 AM
Last modification on : Tuesday, March 16, 2010 - 1:49:06 PM

Identifiers

  • HAL Id : tel-00464154, version 1

Collections

Citation

Elias Castel. Synthèse de nouveaux matériaux multiferroïques au sein de la famille des bronzes quadratiques de formule Ba2LnFeNb4O15. Material chemistry. Université Sciences et Technologies - Bordeaux I, 2009. French. <tel-00464154>

Export

Share

Metrics

Consultation de
la notice

230

Téléchargement du document

190