AC conductivity and dielectric behavior of bulk Furfurylidenemalononitrile

作者：El Nahass M M; Ali H A M^*

来源：Solid State Communications, 2012, 152(12): 1084-1088.

DOI：10.1016/j.ssc.2012.03.002

• Furfurylidenemalononitrile
• AC conductivity
• Dielectric properties

AC conductivity and dielectric behavior for bulk Furfurylidenemalononitrile have been studied over a temperature range (293-333 K) and frequency range (50-5 x 10(6) Hz). The frequency dependence of ac conductivity, sigma(ac), has been investigated by the universal power law, sigma(ac)(omega)=A omega(s). The variation of the frequency exponent (s) with temperature was analyzed in terms of different conduction mechanisms, and it was found that the correlated barrier hopping (CBH) model is the predominant conduction mechanism. The temperature dependence of sigma(ac)(omega) showed a linear increase with the increase in temperature at different frequencies. The ac activation energy was determined at different frequencies. Dielectric data were analyzed using complex permittivity and complex electric modulus for bulk Furfurylidenemalononitrile at various temperatures.

• 出版日期2012-6