Ka. Darwish et al., DILUTION EFFECT ON THE DIELECTRIC-CONSTANT AND THE ELECTRIC-CONDUCTIVITY OF DIAMINE COMPLEXES, Physica scripta. T, 53(1), 1996, pp. 113-117
The dielectric constant as well as the electrical resistivity of the c
ompounds (CH2)(8)(H-3)(2)Fe(x)Cd(1-x)CL(4) (x = 10, 20, 30, 40, 50, 60
, 72 mole%) were measured in the temperature range including their pha
se transition. From the obtained data it was found that the dielectric
constant increases with increasing Fe concentration in the complex. A
maximum dielectric constant value was obtained at a concentration of
similar or equal to 50 mole%. The same behaviour was observed in the e
lectrical resistivity data. The values of the activation energies as c
alculated from the experimental data indicate a semiconducting behavio
ur of the complexes. The hopping model was the predominant one in disc
ussing the results.