ABSTRACT
Multiferroics is a class of functional materials that simultaneously exhibit at least two or more ferroic behaviors, that is ferroelectric, ferromagnetic, or ferroelastic in a single structure. They have been regarded as ideal candidates for several technologically important applications, owing to the realization of magnetoelectric (ME) effects [113]. They can demonstrate not only the ME behavior but also the desired coupling between the magnetic and electric polarizations leading to multifunctionalities such as electric field controlled magnetic data storage or vice versa [11]. This unique feature provides an interesting opportunity for exploiting numerous functionalities in a single structure. As part of the technological drive toward device miniaturization, considerable effort has been devoted to the combination of electronic and magnetic properties into one multifunctional material that is a single device component that can perform more than one task [10, 11]. However, BiFeO3 (BFO) is a well studied single-phase multiferroic, which simultaneously exhibits antiferromagnetism and electrical polar-
izations at room temperature as deserving candidate for practical applications. But due to charge conduction, high leakage current value limits the application of BFO in electronic devices. In this chapter, we describe the detail synthesis procedure as well as variation of metal ion concentration which greatly effect to obtain high purity BFO with rhombohedral phase by conventional solid state reaction route with slow step sintering schedule.
