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hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCASTEL, Elias
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorJOSSE, Michaël
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMICHAU, Dominique
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAGLIONE, Mario
dc.date.issued2009
dc.identifier.issn0953-8984
dc.description.abstractEnRelaxors are very interesting materials but most of the time they are restricted to perovskite materials and thus their flexibility is limited. We have previously shown that tetragonal tungsten bronze (TTB) niobate Ba<sub>2</sub>PrFeNb<sub>4</sub>O<sub>15</sub> was a relaxor below 170 K and that Ba<sub>2</sub>NdFeNb<sub>4</sub>O<sub>15</sub> displays a ferroelectric behavior with a <i>T</i><sub>C</sub> = 323 K. On scanning the whole solid solution Ba<sub>2</sub>Pr<sub><i>x</i></sub>Nd<sub>1−<i>x</i></sub>FeNb<sub>4</sub>O<sub>15</sub> (<i>x</i> = 0, 0.2, 0.4, 0.5, 0.6, 0.8 and 1), we demonstrate here a continuous crossover between these end member behaviors with a coexistence of ferroelectricity and relaxor in the intermediate range. This tunability is ascribed to the peculiar structure of the TTB networks which is more open than the classical perovskites. This allows for the coexistence of long range and short range orders and thus opens up the range of relaxor materials.
dc.language.isoen
dc.publisherIOP Publishing
dc.typeArticle de revue
dc.identifier.doi10.1088/0953-8984/21/45/452201
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Physics: Condensed Matter
bordeaux.page452201 (5 p.)
bordeaux.volume21
bordeaux.issue45
bordeaux.peerReviewedoui
hal.identifierhal-00433535
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00433535v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Journal%20of%20Physics:%20Condensed%20Matter&amp;rft.date=2009&amp;rft.volume=21&amp;rft.issue=45&amp;rft.spage=452201%20(5%20p.)&amp;rft.epage=452201%20(5%20p.)&amp;rft.eissn=0953-8984&amp;rft.issn=0953-8984&amp;rft.au=CASTEL,%20Elias&amp;JOSSE,%20Micha%C3%ABl&amp;MICHAU,%20Dominique&amp;MAGLIONE,%20Mario&amp;rft.genre=article


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