TITLE:
Dielectric Properties of Ni-Zn Ferrites Synthesized by Citrate Gel Method
AUTHORS:
K. Rama Krishna, Dachepalli Ravinder, K. Vijaya Kumar, Utpal S. Joshi, V. A. Rana, Abrham Lincon
KEYWORDS:
Ferrites; Citrate Method; Lattice Parameter; Dielectric Constant; Dielectric Loss
JOURNAL NAME:
World Journal of Condensed Matter Physics,
Vol.2 No.2,
May
17,
2012
ABSTRACT: Ni-Zn ferrite with composition of Ni1-xZnxFe2O4 (x = 0.0, 0.2, 0.4, 0.6, 0.8, 0.9, 1.0) were prepared by citrate gel method. The Dielectric Properties for all the samples were investigated at room temperature as a function of frequency. The dielectric constant shows dispersion in the lower frequency region and remains almost constant at higher frequencies. The frequency dependence of dielectric loss tangent (tan δ) is found to be abnormal, giving a peak at certain frequency for mixed Ni-Zn ferrites. A qualitative explanation is given for the composition and frequency dependence of the dielectric loss tangent.