Author(s)

V. Srinivas¹, A. T. Raghavender², K. Vijaya Kumar^3*

¹Department of Physics, Government Institute of Electronics, Secunderabad, TS, India.
²Department of Electronics and Communication Engineering, Nishitha College of Engineering and Technology, Hyderabad, TS, India.
³Department of Physics, JNTUH College of Engineering Jagtial, Nachupally (Kondagattu), Karimnagar-Dist., TS, India.

Bi_1-xBa_xFeO₃ (0 ≤ x ≤ 0.3) nanopowders were synthesized using sol-gel technique. The structural and magnetic properties were investigated using X-ray diffraction, SEM and VSM. As Ba²⁺ doping concentration was increased, the structure of the samples changed from rhombohedral to tetragonal or monoclinic. The structural change might be an important factor for achieving the ferroelectric properties in this material. The lattice parameters were observed to increase with increase in Ba²⁺ concentration. All the M-H loops showed the ferromagnetic behavior. Magnetization was observed to enhance with increase in Ba concentration. The enhancement in the magnetization due to Ba²⁺ doping may be due to the replacement of Bi³⁺ ions by Ba²⁺ which might have resulted in the suppression of spiral spin structure.

Multiferroic Material, Structural, Magnetic Properties

Srinivas, V. , Raghavender, A. and Kumar, K. (2016) Effect of Ba Substitution on the Structural and Magnetic Properties of BiFeO₃. World Journal of Nano Science and Engineering, 6, 38-44. doi: 10.4236/wjnse.2016.61004.