Abstract
Eu3+-doped BaTiO3 phases were synthesized by combined sol–gel and hydrothermal methods under an oxygen partial pressure of 60psi. The crystal phases were characterized by X-ray powder diffraction. The Raman spectra as well as the magnetic properties were also investigated. The photoluminescence emission spectra confirm that the samples were efficiently excited by near-UV light. All spectra were dominated by a red emission band due to the electric dipole transition 5D0 →7F2. The dependence of the Raman spectra and optical and magnetic properties on the amount of Eu3+ incorporated into the phases was also investigated. The number of magnetic domains increased with the concentration of Eu3+ added.The stabilization of the tetragonal phases was also observed in Eu3+-doped samples, and their ferroelectric properties were also maintained, making these phases interesting multifunctional materials for applications in device design.
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