Charge-ordered subphases and band filling control in uniform two- and one-dimensional organic conductors

Investigation of the extended Hubbard model considering the second nearest V in the atomic limit demonstrates the appearance of many patterns of charge-ordered states, even including Devil’s staircase at finite temperatures. This explains not only the observed modulations in θ-(BEDT-TTF)2RbZn(SCN)4 above TMI, but also the first-order transition and the nearly temperature-independent resistivity. The same logic may be extended to many other organic conductors showing flat resistivity.