Abstract
Non-Fermi liquid behavior is shown to occur in two-dimensional metals which are close to a charge ordering transition driven by the Coulomb repulsion. A linear temperature dependence of the scattering rate together with an increase of the electron effective mass occur above , a temperature scale much smaller than the Fermi temperature. It is shown that the anomalous temperature dependence of the optical conductivity of the quasi-two-dimensional organic metal , with and Rb, above , agrees qualitatively with predictions for the electronic properties of nearly charge ordered two-dimensional metals.
- Received 24 January 2006
DOI:https://doi.org/10.1103/PhysRevLett.96.216402
©2006 American Physical Society