title: Ferroelectric Mott-Hubbard phase of organic (TMTTF)2X conductors.
abstract: We present experimental evidence and a corresponding theory for the ferroelectric 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.
authors.affiliation: Centre de Recherches sur les Très Basses Températures, laboratoire associé à l'Université Joseph Fourier, CNRS, BP 166, 38042 Grenoble cedex 9, France.
authors.forename: P
authors.initials: P
authors.lastname: Monceau
authors.forename: F Y
authors.initials: FY
authors.lastname: Nad
authors.forename: S
authors.initials: S
authors.lastname: Brazovskii