Source:http://linkedlifedata.com/resource/pubmed/id/19519136
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
21
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| pubmed:dateCreated |
2009-6-12
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| pubmed:abstractText |
In the search for multiferroic materials magnetic compounds with a strongly elongated unit-cell (large axial ratio c/a) have been scrutinized intensely. However, none was hitherto proven to have a switchable polarization, an essential feature of ferroelectrics. Here, we provide evidence for the epitaxial stabilization of a monoclinic phase of BiFeO3 with a giant axial ratio (c/a=1.23) that is both ferroelectric and magnetic at room temperature. Surprisingly, and in contrast with previous theoretical predictions, the polarization does not increase dramatically with c/a. We discuss our results in terms of the competition between polar and antiferrodistortive instabilities and give perspectives for engineering multiferroic phases.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
|
| pubmed:month |
May
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| pubmed:issn |
0031-9007
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| pubmed:author |
pubmed-author:AnaniEE,
pubmed-author:BarthélémyAA,
pubmed-author:BellaicheLL,
pubmed-author:BibesMM,
pubmed-author:BouzehouaneKK,
pubmed-author:CrowRR,
pubmed-author:DkhilBB,
pubmed-author:DuttYY,
pubmed-author:FusilSS,
pubmed-author:GenesteGG,
pubmed-author:JacquesDD,
pubmed-author:LisenkovSS,
pubmed-author:LoK FKF,
pubmed-author:MattanaRR,
pubmed-author:PetitSS,
pubmed-author:PetroffFF,
pubmed-author:PonomarevaII,
pubmed-author:RogalevAA,
pubmed-author:Warot-FonroseBB,
pubmed-author:WilhelmFF
|
| pubmed:issnType |
Print
|
| pubmed:day |
29
|
| pubmed:volume |
102
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
217603
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| pubmed:year |
2009
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| pubmed:articleTitle |
Evidence for room-temperature multiferroicity in a compound with a giant axial ratio.
|
| pubmed:affiliation |
Unité Mixte de Physique CNRS/Thales, Campus de l'Ecole Polytechnique, 1 Av. A. Fresnel, 91767 Palaiseau, France.
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| pubmed:publicationType |
Journal Article
|