The ferroelectric Mott-Hubbard phase of organic (TMTTF)2X conductors
arXiv:cond-mat/0012237 · doi:10.1103/PhysRevLett.86.4080
Abstract
We present experimental evidences for a ferro-electric transition in the family of quasi one- dimensional conductors (TMTTF)2X. We interpret this new transition in the frame of the combined Mott-Hubbard state taking into account the double action of the spontaneous charge disproportionation on the TMTTF molecular stacks and of the X anionic potentials.