Ferroelectric properties of cerium doped barium titanate (BATIO₃:CE)

Abstract

Abstract Curie temperature Tc, dielectric constants, absorption coefficients, and lattice constants of ferroelectric BaTiO3:Ce crystals are investigated as a function of cerium concentration. An increase of cell volume with increase doping cerium concentration deduced that the cerium ion is substituted for titanium ion. The absorption edge of crystals moves toward the long wavelength with increasing Ce content. The value of spontaneous polarization and dielectrical constants of BaTiO3:Ce are larger than those in BaTiO3 crystal, and this result is in accord with linear electrooptic coefficient experimental data1