accepted February 20, 2006; published May 10, 2006) Theoretical studies on charge
ordering phenomena in quarter-filled molecular (organic) conductors are reviewed …

We review 35 years of structural studies of quasi-1D organic conductors during which the
concepts of 2kF and 4kF BOW and CDW have been elaborated. In strongly correlated …

The so-called minimal models of unconventional superconductivity are lattice models of
interacting electrons derived from materials in which electron pairing arises from purely …

We investigate the phase diagrams of a one-dimensional lattice model of fermions and of a
spin chain with interactions extending up to next-nearest-neighbor range. In particular, we …

We systematically explore the ground state properties of one dimensional fermions with long-
range interactions decaying in a power law∼ through the density matrix renormalization …

Experiments on quasi-one-dimensional systems such as quantum wires and metallic chains
on surfaces suggest the existence of electron-electron interactions of substantial range and …

The 2: 1 family of organic salts (o-DMTTF) 2 X (X= Cl, Br, I) exhibits regular stacks and a high-
symmetry structure, which provide a perfect three-quarter-filling-band system allowing a rich …

The title material has a quasi-one-dimensional electronic structure and is of considerable
interest because it has a metallic phase with properties different from a simple Fermi liquid, a …

The density-matrix renormalization group method is used to study the ground state of the two-
chain zigzag-bond Hubbard model at quarter filling. We show that, with a proper choice of …

accepted September 13, 2006; published November 10, 2006) Effects of geometrical
frustration in low-dimensional charge ordering systems are theoretically studied, mainly …