Reference : Strain-induced ferroelectricity in simple rocksalt binary oxides
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/14502
Strain-induced ferroelectricity in simple rocksalt binary oxides
English
Bousquet, Eric mailto [Université de Liège - ULg > Département de physique > Physique théorique des matériaux >]
Spaldin, N. [> >]
Ghosez, Philippe mailto [Université de Liège - ULg > Département de physique > Physique théorique des matériaux >]
2010
Physical Review Letters
American Physical Society
104
037601
Yes (verified by ORBi)
International
0031-9007
1079-7114
Ridge
NY
[en] Using first-principles density functional calculations, we show that ferroelectricity can be induced in simple alkaline-earth-metal binary oxides such as barium oxide (BaO) using appropriate epitaxial strains. Going beyond the fundamental discovery, we highlight that the functional properties (polarization, dielectric constant, and piezoelectric response) of such strained binary oxides are comparable in magnitude to those of typical ferroelectric perovskite oxides, making them of direct interest for applications. Finally, we show that magnetic binary oxides such as EuO, with the same rocksalt structure, behave similarly to the alkaline-earth-metal oxides, suggesting a route to new multiferroics combining ferroelectric and magnetic properties.
Researchers ; Professionals
http://hdl.handle.net/2268/14502
10.1103/PhysRevLett.104.037601

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