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Josse, M., Meddar, L., Deniard, P., Jobic, S., Payen, C., Decourt, R. & Maglione, M. (2012) Dielectric Study of Unexpected Transitions in Multiferroic Mn1-x(Mg,Zn)(x)WO4 Ceramics. Ferroelectrics, 428 94–100.
Added by: Laurent Cournède (2016-03-10 21:28:40) |
| Type de référence: Article DOI: 10.1080/00150193.2012.675822 Numéro d'identification (ISBN etc.): 0015-0193 Clé BibTeX: Josse2012 Voir tous les détails bibliographiques  |
Catégories: MIOPS Mots-clés: MnWO4 Créateurs: Decourt, Deniard, Jobic, Josse, Maglione, Meddar, Payen Collection: Ferroelectrics |
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| Résumé |
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The influence of magnetic field on the dielectric properties of several Mn1-x(Mg,Zn)(x)WO4 multiferroic ceramics is investigated, and confirms an additional phase transition below the ferroelectric Curie temperature previously detected in this system in zero magnetic field. In highly doped samples an original plateau of the capacitance is observed between T-2 and this additional transition. Pyroelectric measurements in zero magnetic field for a Mn0.85Mg0.15WO4 ceramic confirm the existence of this unexpected low temperature phase transition. The magnetic or structural origin of this transition is discussed.
Added by: Laurent Cournède |