1Department of Physics, Manoharbhai Patel Institute Of Engineering and Technology, Gondia, India
2Department of Physics, Govindrao Wanjari College of Engineering, Nagpur, India
3Dr. Ambedkar College, Deeksha Bhoomi, Nagpur, India
Online published on 21 November, 2017.
In the present investigation the samples with chemical composition CuSr2(MnZn)x/2Fe16-xO27 (x=0, 1, 2, 3, 4, 5) have been synthesized by chemical coprecipitation method. X-ray diffractometer and Scanning Electron Microscopy were used to study structure, lattice constants, particle size, x-ray density, bulk density, porosity and shape of ferrite powders. The prepared samples were found to have W-type hexagonal structure with the latticeparameters a =(5.81 Å to 5.83 Å) and c = (32.85 Å to 33.17 Å). The average particle size calculated from XRD analysis is found to be 57.03 nm. It was found that, we could obtain single phase W-type CuSr2Fe16O27 nanocrystals at 1000° C. The conductivity, dielectric constant and loss tangent (tan δ) were measured as a function of frequency and temperature and composition. The dielectric constant and loss tangent decrease with frequency. The room temperature resistivity is found to be 2 x 106 Ω cm. Study of electrical properties shows that the compound under study is semiconducting.
XRD, VSM, Electrical Properties, Resistivity
