Structural and Magnetization Behaviors of Ni Substituted Li-Mg Ferrites

M. Mahbubur Rahman^{1, 2,} , Banalota Moonmoon Sonia¹, Mithun Kumar Das¹, Farid Ahmed¹, Md. Abul Hossain¹, D. K. Saha³ and Shireen Akhter³

¹Department of Physics, Jahangirnagar University, Savar, Dhaka, Bangladesh

²School of Engineering & Information Technology, Murdoch University, Perth, Western Australia, Australia

³Materials Science Division, Atomic Energy Centre, Ramna, Dhaka, Bangladesh

Cite this paper:
M. Mahbubur Rahman, Banalota Moonmoon Sonia, Mithun Kumar Das, Farid Ahmed, Md. Abul Hossain, D. K. Saha and Shireen Akhter. Structural and Magnetization Behaviors of Ni Substituted Li-Mg Ferrites. International Journal of Physics. 2013; 1(5):128-132. doi: 10.12691/ijp-1-5-6

Abstract

Magnetization behaviors of Ni-substituted Li_xMg_0.5Ni_0.5-2xFe_2+xO₄ ferrites, where x = 0.25, 0.20, 0.15, 0.10 and 0.00 synthesized by standard ceramic technology sintered at 1300°C in air for 5 hours has been presented in the present study. The bulk density and lattice constants of the samples found to be decreased with the increase in the Ni-content for the x values from 0.25 to 0.00. DC electrical resistivity has found to show highest magnitude at room temperature and decreases with further increase in temperature. Magnetization of the samples has been measured as a function of the field using hysteresis loop tracer at 30°C. It was observed that addition of nickel in polycrystalline Li-Mg ferrites plays an important role in modification of structural and magnetization characteristics.

Keywords:
magnetization ceramic technology bulk density hysteresis loop saturation magnetization

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