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Enhancement of Wigner crystallization in quasi low-dimensional solids

G. Rastelli·P. Quemerais·S. Fratini
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Abstract

The crystallization of electrons in quasi low-dimensional solids is studied in a model which retains the full three-dimensional nature of the Coulomb interactions. We show that restricting the electron motion to layers (or chains) gives rise to a rich sequence of structural transitions upon varying the particle density. In addition, the concurrence of low-dimensional electron motion and isotropic Coulomb interactions leads to a sizeable stabilization of the Wigner crystal, which could be one of the mechanisms at the origin of the charge ordered phases frequently observed in such compounds.

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G. Rastelli, P. Quemerais, S. Fratini. 2006-01-25. Enhancement of Wigner crystallization in quasi low-dimensional solids. https://doi.org/10.1103/physrevb.73.155103

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