Orbital ordering induced ferroelectricity in SrCrO3

Abstract

Using density functional theory calculations, ultrathin films of SrVO3(d1) and SrCrO3(d2) on SrTiO3 substrates have been studied as possible multiferroics. Although both are metallic in the bulk limit, they are found to be insulating as a result of orbital ordering driven by lattice distortions at the ultrathin limit. While the distortions in SrVO3 have a first-order Jahn-Teller origin, those in SrCrO3 are ferroelectric in nature. This route to ferroelectricity (FE) results in polarizations comparable with conventional ferroelectrics.

Accepted in Phys. Rev. Lett

References in corpus (5)

• Magnetically driven ferroelectric order in Ni${}_3$V${}_2$O${}_8$
• Engineering multiferroism in CaMnO${}_3$
• Non-$d^0$ Mn-driven ferroelectricity in antiferromagnetic BaMnO${}_3$
• Maximally Localized Wannier Functions within the FLAPW formalism
• Ab initio calculations of the atomic and electronic structure of CaTiO3 (001) and (011) surfaces

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• Electronic Structure of Magnetic Semiconductor CdCr_2Te_4: A Possible Spin-Dependent Symmetry Filter
• Strain and Spin-Orbit Coupling Induced Orbital-Ordering in Mott Insulator BaCrO3
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• Multiferroic Decorated Fe2O3 Monolayer Predicted from First Principles
• Strain control of the metal-insulator transition in epitaxial SrCrO${}_3$ thin films