Charge-ordering transition in (TMTTF)(2)X explored via dilatometry

Author(s)

de Souza, Mariano ^[1] ; Pouget, Jean-Paul ^[2]

Affiliation

^[1] Unesp Univ Estadual Paulista, IGCE, Dept Fis, BR-13506900 Rio Claro, SP - Brazil

^[2] Univ Paris 11, Lab Phys Solides, CNRS, UMR 8502, F-91405 Orsay - France

• Document type: Review article
• Source: JOURNAL OF PHYSICS-CONDENSED MATTER; v. 25, n. 34 AUG 28 2013.
• Web of Science Citations: 16

Abstract

Charge-ordering phenomena have been highly topical over the past few years. A phase transition towards a charge-ordered state has been observed experimentally in several classes of materials. Among them, many studies have been devoted to the family of quasi-one-dimensional organic charge-transfer salts (TMTTF)(2)X, where (TMTTF) stands for tetramethyltetrathiafulvalene and X for a monovalent anion (X = PF6, AsF6 and SbF6). However, the relationship between the electron localization phenomena and the role of the lattice distortion in stabilizing the charge-ordering pattern is poorly documented in the literature. Here we present a brief overview of selected literature results, with emphasis placed on recent thermal expansion experiments probing the charge-ordering transition of these salts. (AU)

• FAPESP's process: 11/22050-4 - Exploring thermodynamic and transport properties of strongly correlated electron systems
• Grantee: Valdeci Pereira Mariano de Souza
• Support Opportunities: Regular Research Grants