Mott transition in the organic compound κ-(BEDT-TTF) 2 Cu[ N(CN) 2 ] Cl: An evidence for two energy scales
Résumé
We We have performed in-plane transport measurements on the two-dimensional organic salt κ-(BEDT-TTF) 2 Cu[N(CN) 2 ]Cl. A variable gas pressure technique allows for a detailed study of the changes in conductivity through the insulator-to-metal transition. We identify four different transport regimes as a function of pressure and temperature corresponding to insulating, semi-conducting,''bad metal'', and strongly correlated Fermi liquid behaviours.
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