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

Present work proposes new insights in the field of multiferroics and its properties. The substitution of SmFeO3 in PbTiO3 (Pb1-xSmxTi1-xFexO3, x = 0.21, 0.22, 0.23, 0.24 and 0.25) over a range of composition has been syn-thesized and explored for multiferroicity. The properties such as ferroelectric, magnetic as well as coupling between these two have been investigated at room temperature. An in-depth study is carried out to detect the magneto-electric coupling in all the samples through magneto-dielectric, magnetization after electric poling and magneto-pe. The magneto-pe measurement gives the indication of multiferroic nature of all the samples. The maximum value of coupling coefficient (gamma) and magneto-dielectric response (MDR) of about 10.3 g2/emu2 and 13.09 at 1.5 T respectively for sample x = 0.24 has been achieved by magneto-dielectric properties. Moreover, a comparative higher shift (~0.061 emu/g) in magnetization has been observed after electric poling.