@article {32169,
	title = {Electrical conduction in γ-irradiated and unirradiated zinc-iron ferrites},
	journal = {Journal of Materials Science},
	volume = {23},
	year = {1988},
	note = {<p>Cited By (since 1996):3Export Date: 11 February 2014Source: ScopusCODEN: JMTSALanguage of Original Document: EnglishCorrespondence Address: Mousa, M.A.; Chemistry Department, Faculty of Science, Benha University, Benha, Egypt</p>
},
	month = {1988},
	pages = {3083 - 3087},
	publisher = {Kluwer Academic Publishers},
	abstract = {<p>The electrical conductivity of γ-irradiated and unirradiated finely-divided spinels of composition (Znx2+Fe1-x2+Fe23+)O42-was studied in a nitrogen atmosphere as a function of temperature. The results of both γ-irradiated and unirradiated ferrites with compositions x <= 0.79 showed that the electrical conduction occurred by fast electron exchange amongst Fe2+ and Fe3+ ions situated on octahedral sites in the spinel lattice, by a hopping mechanism. For composition x \&gt; 0.79 it was found that the transition of the charge carriers through cation vacancies is the predominant mechanism. Some breaks in the conductivity-temperature curves were found near the Curie points. Seebeck voltage measurements showed that γ-irradiated and unirradiated spinels behave as n-type semiconductors. The effect of γ-irradiation on the conductivity, activation energy, charge carriers and the conduction mechanism is discussed. {\textcopyright} 1988 Chapman and Hall Ltd.</p>
},
	keywords = {Activation energy, COMPOSITION ENERGY, Ferrites, Radiation effects, SEMICONDUCTOR MATERIALS - Charge Carriers, ZINC IRON ALLOYS - Electric Conductivity},
	isbn = {00222461 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0024085027\&partnerID=40\&md5=bfefc9379f5c59258e8fae5807193669},
	author = {M. A. Mousa and M.A. Ahmed}
}
