Non-ohmic conduction in doped polyacetylene at low temperatures

URN to cite this document:: urn:nbn:de:bvb:355-epub-188439
DOI to cite this document:: 10.5283/epub.18843

Chaabane, H. ; Ettlinger, E. ; Schoepe, Wilfried

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Date of publication of this fulltext: 21 Dec 2010 06:34

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Abstract

The electrical conductivity of a iodine-doped polyacetylene is measured as a function of the electric field Escr at temperatures between 4K and 0.3K. We find that after an initial non-linear behavior sgr increases linearly with Escr in agreement with a theoretical description based on variable-range hopping conduction. The non-linear rise at low fields depends on the iodine concentration. In ...