Electrical conduction in some -γ-irradiated and unirradiated metal-zinc ferrites

The electrical conductivity of some γ-irradiated and unirradiated metal-zinc ferrites, M 0.1Zn 0.9Fe 2O 4 (M ≡ Mn 2+, Co 2+, Ni 2+, Cu 2+ or Mg 2+), was investigated as a function of temperature. The ferrites investigated showed n-type conduction. The electrical conduction in M 0.1Zn 0.9Fe 2O 4 (M ≡...

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Bibliographic Details
Published in:Thermochimica acta 1990-02, Vol.158 (1), p.177-181
Main Authors: Mousa, M.A., Summan, A.M., Ahmed, M.A.
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
Inorganic chemistry and origins of life
Preparations and properties
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Summary:The electrical conductivity of some γ-irradiated and unirradiated metal-zinc ferrites, M 0.1Zn 0.9Fe 2O 4 (M ≡ Mn 2+, Co 2+, Ni 2+, Cu 2+ or Mg 2+), was investigated as a function of temperature. The ferrites investigated showed n-type conduction. The electrical conduction in M 0.1Zn 0.9Fe 2O 4 (M ≡ Co 2+, Cu 2+, Mn 2+, or Ni 2+, can be explained by a hopping mechanism, whereas the conduction in ZnFe 2O 4 and Mg 0.1Zn 0.9Fe 2O 4 is interpreted on the basis of the transfer of charge carriers through the cation vacancies present in octahedral sites. The effect of γ-irradiation on the conduction process is discussed.
ISSN:0040-6031
1872-762X
DOI:10.1016/0040-6031(90)80064-6