Strong enhancement in structural, dielectric, impedance and magnetoelectric properties of NdMnO3-BaTiO3 multiferroic composites

Multiferroic composites are advantageous from technological perspective because of their flexible electrical and magnetic properties. The multiferroic composites of (1-x)NdMnO3 - (x)BaTiO3 (x = 0, 0.1 and 0.2) were synthesized via solid state reaction method. The structural analysis from XRD studies of (1-x)NdMnO3-(x)BaTiO3 exhibits distinct peaks of orthorhombic NdMnO3 (NMO) and tetragonal BaTiO3 (BT) phases with absence of any other impurity phases in the composites. The frequency variation of dielectric measurements reveals step-like decrease and confirm Maxwell-Wagner Polarization associated with improved conducting nature in NMO-BT composites. The NMO-20BT composite exhibited giant dielectric behavior owing from lattice stability and hopping mechanism. The impedance measurements confirm improved resistivity in NMO-BT composites and confirm thermally activated non-Debye type conduction behavior in NMO-BT in them. The occurrence of saturated ferroelectric polarization composites along with enhanced remnant magnetization and improved magnetoelectric coupling in NMO-20BT composite due to lattice stability establishes multiferroism in NMO-BT composites.

Automated summary

Multiferroic composites of (1-x)NdMnO3 - (x)BaTiO3 show distinct peaks of orthorhombic NdMnO3 and tetragonal BaTiO3 with improved conducting nature and giant dielectric behavior in NMO-20BT composite. Impedance measurements confirm improved resistivity and thermally activated non-Debye type conduction behavior in NMO-BT composites. Enhanced remnant magnetization and improved magnetoelectric coupling due to lattice stability establish multiferroism in NMO-BT composites.