Abstract:

Fe partially substituted Ti in structure of BaTiO3. The powder X-ray diffraction, Raman spectra and electro-magnetic characterizations of material were carried out at room temperature. The substitution of Fe for Ti directly affects on crystalline structure, lattice relaxation and electro-magnetic properties of BaTiO3. The ferromagnetic behavior at room temperature was observed for all the samples. Magnetic characterization of material and its saturation magnetic moment anomaly depends on concentration of Fe substituted for Ti. By annealing in vacuum at the temperature around 500 oC, the oxygen concentration in BaTiO3 material was controlled. The annealing temperature and annealing time affects on magnetic behavior of the material. An increasing the saturation magnetic moment of the BaTiO3 without Fe substitution was observed in dependence of annealing time and it is supposed to be attributed to appearance of Ti3+ ion, caused by the oxygen deficiency in BaTiO3 material