Author(s)

K. Rama Krishna, Dachepalli Ravinder, K. Vijaya Kumar, Utpal S. Joshi, V. A. Rana, Abrham Lincon

Department of Chemsitrys, P.G. College of Science, Osmania University, Hyderabad, India.
Department of Physics, Gujarat University, Ahmedabad, India.
Department of Physics, Jawaharlal Nehru Technological University, Hyderabad, India.
Department of Physics, Malla Reddy College of Engineering & Technology, Secunderabad, India.
Department of Physics, P.G. College of Science, Osmania University, Hyderabad, India.

Ni-Zn ferrite with composition of Ni_1-xZn_xFe₂O₄ (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.

Ferrites; Citrate Method; Lattice Parameter; Dielectric Constant; Dielectric Loss

K. Krishna, D. Ravinder, K. Kumar, U. Joshi, V. Rana and A. Lincon, "Dielectric Properties of Ni-Zn Ferrites Synthesized by Citrate Gel Method," World Journal of Condensed Matter Physics, Vol. 2 No. 2, 2012, pp. 57-60. doi: 10.4236/wjcmp.2012.22010.