Abstract
Electrical and dielectric behaviour of chromium substituted nickel ferrite
The variation of resistivity and thermo emf with temperature for the ferrites with NiCrxFe2-xO4 has been studied. The conduction process in the first region < 450 K is attributed to impurity conduction while for second region > 450 K due to polarons. The samples show p-type and p-n transition takes place at 450 – 500 K. Abnormal dielectric behavior is observed for the samples with x = 0.8 and 1.0 at 10 MHz and 2 MHz respectively. This is due to increase of P-type carriers.
Author(s): S. C. Chaudhari1 and A. K. Ghatage2
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