High-θ polyacetylene: DC conductivity between 14 mK and 300 K

URN to cite this document:: urn:nbn:de:bvb:355-epub-188407

Schimmel, T. ; Denninger, G. ; Riess, W. ; Voit, J. ; Schwoerer, M. ; Schoepe, Wilfried ; Naarmann, H.

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Date of publication of this fulltext: 21 Dec 2010 06:39

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Abstract

Highly stretch-oriented polyacetylene (6.5:1) yields conductivities σ of typically 20 000–100 000 Ω−1cm−1 at room temperature when highly doped with iodine. Between T = 300 K and T = 14 mK, σ decreases monotonically by about a factor of 5 for fresh samples. Above 400 mK the temperature dependence for fresh samples is fitted by the SHENG formula and can be interpreted within a phenomenological ...