Document Details Document Type : Article In Journal  Document Title : Ac conductivity and dielectric measurements of bulk pyronine G(Y) Ac conductivity and dielectric measurements of bulk pyronine G(Y)   Subject : Physics  Document Language : English  Abstract : Electrical conductivity measurements of pyronine G(Y) were performed as a function of both temperature (303-443 K) and frequency (50 Hz-550 kHz). The frequency dependence of ac conductivity is well represented by the form ω8. The values of exponent, (s) decrease from 0.98 at 303 K to 0.67 at 403 K. The temperature dependence of both ac electrical conductivity and the exponent (s) reveals that the ac conduction is due to the correlated barrier hopping (CBH). The dielectric constant, ε1 (ω) and dialectic loss, ε2(ω), have been determined for bulk pyronine G(Y). Both ε1(ω) and ε2(ω) decrease by increasing frequency and increase by increasing temperature.  ISSN : 12860042  Journal Name : EPJ Applied Physics  Volume : 49  Issue Number : 1  Publishing Year : 2010 AH 2010 AD  Article Type : Article  Added Date : Saturday, February 6, 2010  Researchers Researcher Name (Arabic) Researcher Name (English) Researcher Type Dr Grade Email سعود جميل يغمور Yaghmour, Saud Jameel Researcher Doctorate syaghmour@kau.edu.sa Files File Name Type Description  25165.pdf pdf Abstract  25166.pdf pdf Abstract Back To Researches Page