Certain low-dimensional metals exhibit charge density wave (CDW) instabilities although their individual Fermi surfaces do not have the nesting responsible for the observed CDW's. This phenomenon is explained in terms of the conept of hidden Fermi surface nesting. In order to find general conditions leading to hidden Fermi surface nesting in low-dimensional systems, we examined the electronic structures of two widely different classes of compounds, i.e., the inorganic transition-metal oxide Sr3V207 and the organic conducting salts (BEDT-TTF)2Re04 and (BEDT-TTF)4Pt(C204)2.
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