Mean-field study of charge order with long periodicity in $\theta$-(BEDT-TTF)${}_2$X

Masato Kaneko, Masao Ogata

Charge ordering phenomenon in $\theta$-(BEDT-TTF)${}_2$X is studied by using 1/4-filled extended Hubbard model on an anisotropic triangular lattice through mean-field approximation. It is…