摘要: Abstract The new stretch-oriented trans -polyacetylene exhibits a degree of macroscopic order combined with novel transport properties. modelling the electronic structure is still matter controversy. This controversy mainly among three models which emphasize (a) correlations, (b) dimensionality and band structure, (c) electron-phonon interaction. experimental magnetoresistance low temperature conduction properties are particularly well suited as means discriminating between presented by various schools thought. We focus on highly metallic limit conclude that bulk better described percolation-type model than Anderson localization. strong negative linked to an energy renormalization positive contribution wave-function shrinkage.
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