49 citations
- Centre National de la Recherche ScientifiqueFR5 papers
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- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1 paper
- Délégation Centre-EstFR1 paper
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5 papers · 1 filter
Correlation between electric-field-induced phase transition and piezoelectricity in lead zirconate titanate films
V Kovacova, N Vaxelaire, G Le Rhun +3
We observed that electric field induces phase transition from tetragonal to rhombohedral in polycrystalline morphotropic lead zirconate titanate (PZT) films, as reported in 2011 fo…
First-principles study of PbTiO under uniaxial strains and stresses
Henu Sharma, Jens Kreisel, Philippe Ghosez
The behavior of PbTiO under uniaxial strains and stresses is investigated from first-principles calculations within density functional theory. We show that irrespectively of th…
Dynamic and structural properties of orthorhombic rare-earth manganites under high pressure
D. A. Mota, A. Almeida, V. H. Rodrigues +6
We report a high-pressure study of orthorhombic rare-earth manganites AMnO3 using Raman scattering (for A = Pr, Nd, Sm, Eu, Tb and Dy) and synchrotron X-ray diffraction (for A = Pr…
Order-Parameter Symmetries of Domain Walls in Ferroelectrics and Ferroelastics
Pierre Tolédano, Mael Guennou, Jens Kreisel
The symmetry of boundaries between ferroelectric, ferroelastic and antiphase domains is a key element for a theoretical understanding of their properties. Here, we derive this symm…
Jahn-Teller, polarity and insulator-to-metal transition in BiMnO3 at high pressure
Mael Guennou, Pierre Bouvier, Pierre Toulemonde +5
The interaction of coexisting structural instabilities in multiferroic materials gives rise to intriguing coupling phenomena and extraordinarily rich phase diagrams, both in bulk m…