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Thermoelectric Power of Cu-Zn Ferrites

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DOI: 10.4236/msa.2011.211210    5,987 Downloads   9,588 Views   Citations

ABSTRACT

A series of Cu-Zn mixed ferrites with composition formula Cu1–xZnxFe2O4 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.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

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.

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