Modeling the magnetoelectric effect in BiFeO3-PbTiO3 compounds by using the Finite Element Method

Reference	Presenter	Authors (Institution)	Abstract
08-028	Daniel Matos Silva	Silva, D.M.(Maringá State University); Freitas, V.F.(Universidade Estadual do Centro-Oeste); Santos, I.A.(Maringa State University);	Ferroelectricity and magnetism are widely exploited in technologically advanced applications and are present in most of the everyday smart devices. However, these phenomena tend to be mutually exclusive and interact weakly when it coexist in the matter. Fortunately, this coexistence can be seen and exploited in single-phase multiferroic magnetoelectric materials, where their mutual coupling is described by so-called magnetoelectric effect. In fact, the magnetoelectric effect is usually strong in La doped BiFeO3-PbTiO3 compounds, making them very interesting and attractive for application in multifunctional devices. In anticipation of experimental results, computational simulations are increasingly necessary and interesting because they can be effective for reducing costs and time and for the development of new materials and systems. One way to do these checks is by means of the application of the Finite Element Method. This method is widely used in the approximation of partial differential equations that can not be solved analytically to numerical models. In this work, the magnetoelectric effect in La doped BiFeO3-PbTiO3 compounds is investigated by using the Finite Element Method. The simulations show that the intrinsic magnetoelectric effect of single-phased materials can be effectively and properly simulated with high reliability, leading to results very close to those obtained experimentally.
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