Structural and magnetic properties of zinc- and aluminum-substituted cobalt ferrite prepared by co-precipitation method

Pramana

S T Alone1²  K M Jadhav¹ 

[1] Department of Physics, Dr. B. A. Marathwada University, Aurangabad 431 004, India$$;Shiv Chhatrapati College, Aurangabad 431 004, India$$

关键词: Ferrite;    co-precipitation;    magnetization;    AC susceptibility.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Spinal ferrites having the general formula Co1-𝑥Zn𝑥Fe2-𝑥Al𝑥O4 (𝑥 = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6) were prepared using the wet chemical co-operation technique. The samples were annealed at 800°C for 12 h and were studied by means of X-ray diffraction, magnetization and low field AC susceptibility measurements. The X-ray analysis showed that all the samples had single-phase cubic spinel structure. The variation of lattice constant with Zn and Al concentration deviates from Vegard's law. The saturation magnetization 𝜎𝑠 and magneton number 𝑛B measured at 300 K using high field hysteresis loop technique decreases with increasing 𝑥, suggesting decrease in ferrimagnetic behaviour. Curie temperature 𝑇C deduced from AC susceptibility data decreases with 𝑥, suggesting a decrease in ferrimagnetic behaviour.

【 授权许可】

Unknown