Pierre Monceau 1, F. Ya Nad 1, 2, Serguei Brazovskii 3, 4
Physical Review Letters 86 (2001) 4080-4083
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.
- 1. Centre de Recherches sur les Très Basses Températures (CRTBT),
CNRS : UPR5001 – Université Joseph Fourier – Grenoble I – Institut National Polytechnique de Grenoble (INPG) - 2. Institute of Radio-Engineering and Electronics,
Institute of Radio-Engineering and Electronics - 3. Laboratoire de Physique Théorique et Modèles Statistiques (LPTMS),
CNRS : UMR8626 – Université Paris XI – Paris Sud - 4. L.D. Landau Institute for Theoretical Physics,
Landau Institute for Theoretical Physics