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Ferroelectric and Ferromagnetic Properties of Co-doped BiFeO3 Thin Films

  • Danilo G Barrionuevo (a1), Surinder P Singh (a2), Ram S Katiyar (a3) and Maharaj S. Tomar (a4)

Abstract

Materials which possess electrical and magnetic coupling are of great interest for novel devices. Bi(Fe1-xCox)O3 (BFCO) material system was synthesized by solution route for various compositions and thin films were prepared by spin coating on Pt (Pt/Ti/SiO2/Si) substrates. Structural properties of the films were investigated by x-ray diffraction and Raman spectroscopy. X-ray diffraction patterns confirms intense (110) in BiFeO3 and Bi(Fe1-xCox)O3 with rhombohedra distorted perovskite structure without impure phase. Bi(Fe1-xCox)O3 films show week ferroelectric polarization and ferromagnetism at room temperature. Ferroelectric and ferromagnetic coupling could be attributed to the elimination of oxygen vacancies and increased stress in the crystal structure by partial replacement of Fe2+ ion by Co2+ ion.

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Keywords

Ferroelectric and Ferromagnetic Properties of Co-doped BiFeO3 Thin Films

  • Danilo G Barrionuevo (a1), Surinder P Singh (a2), Ram S Katiyar (a3) and Maharaj S. Tomar (a4)

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