Bonding and Electronic Properties of BiFeO3 Multiferroic Material (original) (raw)

We present a framework for modeling the boundary-value problem (frequency driven) for homogeneous multiferroic material bismuth ferrite under the validity of post constraint and apply it to fundamental differential equation of electromagnetism in valid new regimes (boundary conditions for material with simultaneous electric and magnetic order). The only multiferroic material exhibiting the unambiguous magneto-electric effect at room temperature is bismuth ferrite. We illustrated the presence of Tellegen parameter as magneto-electric tensor or magneto-electric quadrupole, which is not related to the position of crystal. We developed the model to enhance the magneto-electric effect of the bismuth ferrite.