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Multiferroic particulate composites have been fabricated by taking themorphotropic phase boundary composition of ferroelectric phaseBi(Ni1/2Ti1/2)O3-PbTiO3 and magnetic phase (Ni,Zn)Fe2O4. The ferroelectricphase has coexisting monoclinic and tetragonal perovskite structures with spacegroup Pm and P4mm, respectively whereas the magnetic phase has spinel cubicstructure with space group Fd3m. Rietveld structural analysis for the eachcomponents of composite reveals that the tetragonality (c/a) of theferroelectric phase continuously increases with increasing the concentration ofmagnetic phase suggesting partial ionic diffusion between ferroelectric andmagnetic phases, after composite formation. Composition dependent M\"ossbauerspectra of (1-x)Bi(Ni1/2Ti1/2)O3-PbTiO3/x(Ni,Zn)Fe2O4 reveals thesuperparamagnetic like behavior for the ferroelectric rich composition withx=0.2. The magnetic ordering increases for the composition with x=0.4 and 0.6which completely transform into ferrimagnetic for the composition with x=0.9for the magnetic phase rich compositions. Unlike the ferroelectric or magneticcomponents which do not exhibit the magnetoelectric response separately, largevalue of magnetoelectric coefficient (30 mV/Oe-cm) in(1-x)Bi(Ni1/2Ti1/2)O3-PbTiO3/xNi0.6Zn0.4Fe2O4 composite makes it promise formultifunctional applications.

Structural, Ferroelectric, Magnetic and Magnetoelectric Response in  Multiferroic (1-x)Bi(Ni1/2Ti1/2)O3-PbTiO3/xNi0.6Zn0.4Fe2O4 Particulate  Composites