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Article Dans Une Revue Physical Review Letters Année : 2005

Ferroelectricity of perovskites under pressure

Résumé

Ab initio simulations and experimental techniques are combined to reveal that, unlike what was commonly accepted for more than 30 years, perovskites and related materials enhance their ferroelectricity as hydrostatic pressure increases above a critical value. This unexpected high-pressure ferroelectricity is different in nature from conventional ferroelectricity because it is driven by an original electronic effect rather by long-range interactions.
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Dates et versions

hal-00114063 , version 1 (15-11-2006)

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Kornev Ia, P. Bouvier, Pe Janolin, B. Dkhil, J. Kreisel, et al.. Ferroelectricity of perovskites under pressure. Physical Review Letters, 2005, 95 (19), pp.Art. No. 196804. ⟨10.1103/PhysRevLett.95.196804⟩. ⟨hal-00114063⟩
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