Ferroelectric Mott-Hubbard phase of organic (TMTTF)(2)X conductors

Authors
Monceau, P Nad, FY Brazovskii, S
Citation
P. Monceau et al., Ferroelectric Mott-Hubbard phase of organic (TMTTF)(2)X conductors, PHYS REV L, 86(18), 2001, pp. 4080-4083
Citations number
18
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
18
Year of publication
2001
Pages
4080 - 4083
Database
ISI
SICI code
0031-9007(20010430)86:18<4080:FMPOO(>2.0.ZU;2-9
Abstract
We present experimental evidence and a corresponding theory for the ferroel ectric transition in the family of quasi-one-dimensional conductors (TMTTF) (2)X. We interpret this new transition in the frame of the combined Mott-Hu bbard state taking into account the double action of the spontaneous charge disproportionation on the TMTTF molecular stacks and of the X anionic pote ntials.