Electrical Properties of Rare Earth Substituted Bi[sub 6]Fe[sub 2]Ti[sub 3]O[sub 18] Compound.

The Ac conductivity measurements of polycrystalline materials of rare earth substituted Bi[sub 6]Fe[sub 2]Ti[sub 3]O[sub 18] compound at different frequencies (1 kHz-1 MHz) and temperatures (30550°C) are reported. The dc conductivity, ionic hoping rate as well as carrier densities have been extracted from the ac conductivity data. The results show that hoping mechanism dominates at lower temperature. The results are discussed. [ABSTRACT FROM AUTHOR]