Author(s)

Hussain Abd-Elkariem Dawoud

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A series of Cu-Zn mixed ferrites with composition formula Cu_1–xZn_xFe₂O₄ is prepared by the double sintering ceramic technique. Thermoelectric power studies are performed over a temperature range of 300 to 800 k by a deferential method. The results showed a negative value for the Seebeck coefficient S for all samples, and all compositions exhibited an n-type semiconductors behavior in the measured range of temperature. The values of charge carrier concentration n and the Fermi energy were determined. The values of n were found to decrease as temperature increased, while Fermi energy directed to more negative values when Zn content is increased. On the basis of these results a mechanism for the conduction in Cu-Zn ferrites is suggested and the properties of the mention compounds were determined.

Ferrites, Thermoelectric Power, Fermi Energy, Seebeck Coefficient

H. Dawoud, "Thermoelectric Power of Cu-Zn Ferrites," Materials Sciences and Applications, Vol. 2 No. 11, 2011, pp. 1572-1577. doi: 10.4236/msa.2011.211210.