%0 Journal Article
%T A.C. Conductivity of Ag Incorporated Se-Te-Bi Glassy Alloy
%A Anup£¿Kumar
%A Pawan£¿Heera
%A Raman£¿Sharma
%J Journal of Nano- and Electronic Physics
%D 2013
%I Sumy State University
%X Effect of Ag addition on the a.c. conductivity as a function of frequency in Se80.5Bi1.5Te18 ¨C yAgy (y   1.0, 1.5 and 2.0 at. %) glassy alloy has been investigated in the temperature range 300-355 K. The electrical conductivity is measured as a function of frequency ( ) of an alternating electric field in the frequency range 1 -500 kHz, using Wayne Kerr 6500 B Impedance Analyzer. A.C. conductivity  (¦Ø) is found to increases with an increase in frequency for the entire range of temperature in all compositions. The frequency exponent s is found to decrease with an increase in temperature which indicates that the correlated barrier hopping is the possible conduction mechanism in the investigated samples.
%K A
%K C
%K conductivity
%K Chalcogenide glasses
%K Activation energy
%K Frequency exponen
%U http://jnep.sumdu.edu.ua/download/numbers/2013/2/articles/jnep_2013_V5_02020.pdf