X-ray, infrared and magnetic studies of chromium substituted nickel ferrite

摘要

Substituted nickel ferrites have been the subject of extensive investigation because of their utility in microwave devices, computer memory chips, magnetic recording media, etc. [1,2]. The investigation of cation distribution, at octahedral and tetrahedral positions, and magnetic studies is very important in order to control the domain of applications of the substituted nickel ferrites. The control of cation distribution and microstructure provides a means to develop the desired physical properties that help in their proper use in industry. In this present paper we report on X-ray diffraction, infrared (i.r.), magnetization and alternating current (a.c.) susceptibility studies in the NiFe_(2-x)Cr_xO_4 system.