Luiz F. Cótica, Valdirlei F. Freitas, Otávio A. Protzek, José A. Eiras, Ducinei Garcia, Fabiano Yokaichiya, Ivair A. Santos, Ruyan Guo e Amar S. Bhalla

Journal of Applied Physics – Volume: 116; Issue: 3; Page: 034107; DOI: 10.1063/1.4890455

In this manuscript, X-ray and high-resolution neutron powder diffraction investigations, associated with Rietveld refinements, magnetic hysteresis curves and a modeling of electron-density distributions around the ions, are used to describe the driving forces responsible for tuning the ferroic states in La doped (0.6)BiFeO3-(0.4)PbTiO3 compositions. The intrinsic relations between the ferroic orders and the structural arrangements (angles, distances and electron-density distributions around the ions) are revealed, helping in the understanding of some aspects comprising the ferroic properties of perovskite-based displacive multiferroic compounds.

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