title: Ferroelectricity of perovskites under pressure.
abstract: 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.
authors.affiliation: Physics Department, University of Arkansas, Fayetteville, Arkansas 72701, USA. ikornev@uark.edu
authors.forename: Igor A
authors.initials: IA
authors.lastname: Kornev
authors.forename: L
authors.initials: L
authors.lastname: Bellaiche
authors.forename: P
authors.initials: P
authors.lastname: Bouvier
authors.forename: P-E
authors.initials: PE
authors.lastname: Janolin
authors.forename: B
authors.initials: B
authors.lastname: Dkhil
authors.forename: J
authors.initials: J
authors.lastname: Kreisel