Optimal multiferroic properties and enhanced magnetoelectric coupling in SmFeO3–PbTiO3 solid solutions

Abstract

Multiferroic solid solutions of (Pb0.8Sm0.2)(Ti0.8Fe0.2)O3 are synthesized by conventional solid-state reaction. Microstructure property relationship has been studied and it is shown that the multiferroic properties in the sample are dependent on sintering temperature. The sample sintered at 1200 °C exhibits optimal properties and shows enhanced magnetoelectric coupling at room temperature. For the sample sintered at 1200 °C, large remnant polarization (Pr∼20 μC/cm2) and positive remnant magnetization (Mr∼0.021 emu/g) were observed at room temperature.

Evidence of finite magneto-electric coupling in SmFeO3 – PbTiO3 solid solutions

“…Singh et al [30] reported the multiferroic properties of (Pb0.8Sm0.2) (Ti0.8Fe0.2)O3 whereas structural and magnetic properties of (1-x)Pb(Zr0.45Ti0.55)-(x)SmFeO3, 0.10 ≤ x ≤ 0.15 have been reported by Randeep et al [31]. From these studies, it is clear that PT-SF solid solutions have either been explored up to x = 0.20 only.…”

Evidence of Finite Magneto-electric Coupling in SmFeO3 – PbTiO3 Solid Solutions

“…Singh et al [30] reported the multiferroic properties of (Pb0.8Sm0.2) (Ti0.8Fe0.2)O3 whereas structural and magnetic properties of (1-x)Pb(Zr0.45Ti0.55)-(x)SmFeO3, 0.10 ≤ x ≤ 0.15 have been reported by Randeep et al [31]. From these studies, it is clear that PT-SF solid solutions have either been explored up to x = 0.20 only.…”

Well-saturated ferroelectric polarization in PbTiO3–SmFeO3 thin films

“…0.8PbTiO 3 -0.2SmFeO 3 solid-solution has been reported for the bulk. 18 But the voltage needed to cause the ferroelectric domain switching of bulk ceramics or single crystals is too high, which restricts their practical application. As a consequence of the minimal thickness of thin films, a high electric field can be achieved with low voltages, making the integrated ferroelectric devices possible.…”