Metal-insulator transition in highly conducting oriented polymers

Details Metal-insulator transition in highly conducting oriented polymers Metal-insulator transition in highly conducting oriented polymers

1995-12-19

arxiv.org/abs/cond-mat/9512136v1

Physics

Condensed Matter

9 pages (RevTex) + 3 postcript figures

Scientific paper

We suggest that highly conducting oriented polymers with a fibril structure can be modeled by a regular lattice of disordered metallic wires with a random first-neighbor interwire coupling which mimics the cross-links between fibrils. We show that such a model can be described by a non-linear sigma model. Within a one-loop self-consistent approximation, we determine the position of the metal-insulator transition as a function of interwire cross-links concentration, interwire coupling and number of polymer chains in a wire.

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