  Superlattices composed of ferromagnetics, namely La$_{0.7}$Ca$_{0.3}$MnO$_3$
(LCMO), and ferroelectrics, namely, BaTiO$_3$(BTO) were grown on SrTiO$_3$ at
720$^o$C by pulsed laser deposition process. While the out-of-plane lattice
parameters of the superlattices, as extracted from the X-ray diffraction
studies, were found to be dependent on the BTO layer thickness, the in-plane
lattice parameter is almost constant. The evolution of the strains, their
nature, and their distribution in the samples, were examined by the
conventional sin$^2\psi $ method. The effects of structural variation on the
physical properties, as well as the possible role of the strain on inducing the
multiferroism in the superlattices, have also been discussed.
