Research Article Open Access

Electrical, Structural, Magnetic and Transport Properties of Zn2 Ba Fe16 O27 Doped With Cu2+

D. M. Hemeda1 and O. M. Hemeda1
  • 1 ,
American Journal of Applied Sciences
Volume 5 No. 4, 2008, 289-295

DOI: https://doi.org/10.3844/ajassp.2008.289.295

Submitted On: 26 February 2007 Published On: 30 April 2008

How to Cite: Hemeda, D. M. & Hemeda, O. M. (2008). Electrical, Structural, Magnetic and Transport Properties of Zn2 Ba Fe16 O27 Doped With Cu2+. American Journal of Applied Sciences, 5(4), 289-295. https://doi.org/10.3844/ajassp.2008.289.295

Abstract

Series of polycrystalline samples of Zn2-x Cux Ba Fe16 O27 were prepared by usual ceramic methods, where (x=0.0, 0.4, 0.6, 0.8, 1.0, 1.4) . X-ray analysis were obtained at room temperature using Coka with λ = 1.790A0 confirmed the presence of W-type hexaferrite phase structure . Saturation magnetization and hysteresis loops curves measurements at room temperature were studied as a function of Cu 2+ substitution . It can be seen that the Cu 2+ content slightly decreases the saturation magnetization from 25 to 20 (emug-1), all hysterysis loops are closed which indicates low anisotropy field and low saturation magnetization field . The dc conductivity and thermoelectric power was measured in range from room temperature up to T = 750 K for all samples . The thermoelectric power decreases by increasing Cu 2+ content and the conductivity increases with temperature . The value of the charge carrier concentration increases by increasing temperature and Cu 2+ content.

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Keywords

  • magnetic properties
  • Electrical properties
  • charge carrier concentration X-ray analysis
  • Hexagonal ferrite