Abstract
Model of electronic subsystem of (BEDT-TTF)2X family has been studied theoretically within Green function equation of motion approach. Transition from insulating to metallic behavior is described as a gap opening in the quasiparticle spectrum under doping, the external pressure application or increasing temperature. Out-of-plane hopping is shown to control Fermi surface shape and conductivity, being different from bulk systems ones. On this basis, we discuss the experimental phase diagrams for quasi-two-dimensional organic conductors with strong electron correlations and correlated hopping.
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