Study of dependence of magnetic properties on seeding temperature in fine particles of Cu0.25Co0.25Zn0.5Fe2O4

Bulletin of materials science

Snehal Jani¹  Hina Bhargava¹  N Lakshmi¹  V D Sudheesh¹  K Venugopalan¹ 

[1] Department of Physics, Mohanlal Sukhadia University, Udaipur 313 001, India$$Department of Physics, Mohanlal Sukhadia University, Udaipur 313 001, IndiaDepartment of Physics, Mohanlal Sukhadia University, Udaipur 313 001, India$$

关键词: Coprecipitation;    seeding temperature;    magnetic properties;    Mössbauer spectroscopy.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Using a combination of X-ray diffraction, room temperature/low temperature Mössbauer studies and d.c. magnetization, the structural and magnetic properties of nano-sized Cu_0.25Co_0.25Zn_0.5Fe₂O₄, prepared using the coprecipitation method at different seeding temperatures, have been studied. Formation of ð›�?-Fe₂O₃ in these samples is observed to be very sensitive to the seeding temperature and is totally suppressed at a seeding temperature of 333 K. These results are explained in terms of the rate of coprecipitation of the different components as a function of temperature. Since ð›�?-Fe₂O₃ is antiferromagnetic, the presence and quantity of this impurity is also observed to deteriorate the overall magnetic properties of the spinel phase.

【 授权许可】

Unknown