ELECTRICAL-CONDUCTION IN SOME GAMMA-IRRADIATED AND UNIRRADIATED METAL ZINC FERRITES

被引：8
|
作者：
MOUSA, MA
SUMMAN, AM
AHMED, MA
机构：
[1] UMM AL QURA UNIV,FAC APPL SCI,DEPT CHEM,MECCA,SAUDI ARABIA
[2] UNIV CAIRO,FAC SCI,DEPT PHYS,GIZA,EGYPT
来源：
THERMOCHIMICA ACTA | 1990年 / 158卷 / 01期
关键词：
D O I：
10.1016/0040-6031(90)80064-6
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The electrical conductivity of some γ-irradiated and unirradiated metal-zinc ferrites, M0.1Zn0.9Fe2O4 (M ≡ Mn2+, Co2+, Ni2+, Cu2+ or Mg2+), was investigated as a function of temperature. The ferrites investigated showed n-type conduction. The electrical conduction in M0.1Zn0.9Fe2O4 (M ≡ Co2+, Cu2+, Mn2+, or Ni2+, can be explained by a hopping mechanism, whereas the conduction in ZnFe2O4 and Mg0.1Zn0.9Fe2O4 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. © 1990.
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页码：177 / 181
页数：5
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