Tuesday, December 11, 2012

1212.1922 (Mirko Baćani et al.)

Hopping Electron Transport in Doped Polyaniline: an Experimental
Verification of the Fogler-Teber-Shklovskii Model

Mirko Baćani, Mario Novak, Ivan Kokanović, Dinko Babić
We present a study of the temperature (T) dependence of the dc electrical conductivity of polyaniline pellets doped over a wide range. A crossover between low-T variable-range hopping and high-T nearest-neighbor hopping has been found below room temperature for most of the samples, which is atypical for conducting polymers. This allows us to construct an experimental diagram that accounts for different regimes in the hopping electron transport and closely resembles predictions of the Fogler-Teber-Shklovskii model in three dimensions.
View original: http://arxiv.org/abs/1212.1922

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