Multiferroic BiFeO3-BiMnO3 Nanocheckerboard From First Principles

Abstract

We present a first principles study of an unusual heterostructure, an atomic-scale checkerboard of BiFeO3-BiMnO3, and compare its properties to the two bulk constituent materials, BiFeO3 and BiMnO3. The "nanocheckerboard" is found to have a multiferroic ground state with the desired properties of each constituent: polar and ferrimagnetic due to BiFeO3 and BiMnO3, respectively. The effect of B-site cation ordering on magnetic ordering in the BiFeO3-BiMnO3 system is studied. The checkerboard geometry is seen to give rise to a a novel magnetostructural effect that is neither present in the bulk constituent materials, nor in the layered BiFeO3-BiMnO3 superlattice.

15 pages, 14 figures

References in corpus (9)

• First-principles study of spontaneous polarization in multiferroic BiFeO${}_3$
• Weak ferromagnetism and magnetoelectric coupling in bismuth ferrite
• Effect of epitaxial strain on the spontaneous polarization of thin film ferroelectrics
• Epitaxial-strain-induced multiferroicity in SrMnO${}_3$ from first principles
• First principles study of the multiferroics BiFeO${}_3$, Bi${}_2$FeCrO${}_6$, and BiCrO${}_3$: Structure, polarization, and magnetic ordering temperature
• Strain-induced isosymmetric phase transition in BiFeO3
• Si-compatible candidates for high-K dielectrics with the Pbnm perovskite structure
• Orbital ordering and enhanced magnetic frustration of strained BiMnO3 thin films
• Magnetostructural Effect in the Multiferroic BiFeO3-BiMnO3 Checkerboard from First Principles

Cited by in corpus (1)

• Coexistence of spin glass and ferroelectricity in highly ordered Bi2FeMnO6 epitaxial thin film