Structural, dielectric and magnetoelectric studies of [0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3]-Ni0.8Zn0.2Fe2O4 multiferroic composites

Processing issues and their influence in the magnetoelectric performance of (K,Na)NbO3/CoFe2O4-based layered composites

“…Although piezoelectric charge coefficients are below those of PZT, the processing of particulate composites was recently addressed, and a magnetoelectric coefficient of 40 mVcm −1 Oe −1 was reported for Bi 0.5 Na 0.4 K 0.1 TiO 3 -Ni 0.8 Zn 0.2 Fe 2 O 4 [15]. Piezoelectric charge coefficients comparable to best PZTs have been obtained for materials in the (Ba,Ca)TiO 3 -Ba(Ti,Zr)O 3 system [16], and particulate composites of A magnetoelectric coefficient of 13 mVcm −1 Oe −1 was achieved in this case [17]. [19], while a magnetoelectric coefficient α E 31 of ∼130 mVcm −1 Oe −1 was obtained in laminate composites of (K 0.45 Na 0.55 ) 0.…”

Strong magnetoelectric effect in pulse laser deposited [Ba(Zr0.2Ti0.8)O3‐0.5(Ba0.7Ca0.3)TiO3]/CoFe2O4 bilayer thin film

“…The initial increase can be attributed to the growth of domains and their favorable orientation along the magnetic field. Further growth of the domains may hinder the piezoelectric deformation, leading to the drop in the value . The larger values for α E, 31 may originate from the higher saturation magnetization as well as magnetostriction response of the CFO layer in the transverse direction.…”

Magnetoelectrics: Three Centuries of Research Heading Towards the 4.0 Industrial Revolution

“…Lead zirconate titanate (PZT) [39] has been very often used as the ferroelectric phase in ME composites due to its remarkable piezoelectric (PE) effect. At the same time, ferrites are used as magnetostrictive components due to their high magnetostrictive (MS) performance [11], being found reports employing cobalt ferrite (CoFe 2 O 4 ) [40], nickel ferrite (NiFe 2 O 4 ) [41] and Ni 0.8Zn 0.2Fe 2 O 4 as magnetic phase [42]. Lopatina et al [43] prepared and investigated PZT/ferrite composites of different connectivity.…”