Abstract
We investigate the influence of many body effects on banding in systems with low dimensionality. This includes organic solids, polymers and layered materials. It is argued in this paper, that many-body effects can become important in generating quasi-3-dimensinality. We suggest that this effect is particularly important in doped systems where there are locally regions of free charge like in doped polymers and in highT c superconductors. Various mechanisms for enhanced many-body induced banding in the weak direction are discussed. This includes polarisation effects and correlations of the Hubbard type.
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Movaghar, B. The effect of electronic correlations on banding in low dimensional systems. Z. Physik B - Condensed Matter 85, 23–34 (1991). https://doi.org/10.1007/BF01387784
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DOI: https://doi.org/10.1007/BF01387784