“STUDIES ON STRUCTURAL AND ELECTRICAL PROPERTIES OF (1-X) CO MN FE O + (X) BATIO COMPOSITES

<p>The (1-x) Co Mn Fe O + (x) BaTiO magnetoelectric (ME) composite have 1.2 0.2 1.6 4 3 been prepared using conventional double sintering ceramic process where x varies as 0.25, 0.50 and 0.75. The presence of constituent phases, i.e. piezoelectric and piezomagnetic in the composite has been confirmed by X-ray diffraction. The dc resistivity of the samples has been studied with variation in temperature. The magnetoelectric voltage coefficient (dE/dH)H was studied as a function of intensity of the magnetic field. The measured magnetoelectric (ME) response demonstrated strong dependence on the volume fraction of CoMnFe O and the applied magnetic field. A 2 4 large ME voltage coefficient was observed for 25% CoMnFe O + 75% BaTiO 2 4 3 composite. The effect of resistivity on ME voltage coefficient is studied.</p