2013/07/29 by Mariano de Souza, M De Souza, Jean‐Paul Pouget +1
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Charge (physics) #Charge ordering #Chemical physics #Chemistry #Condensed matter physics #Distortion (music) #Ion #Lattice (music) #Materials science #Optoelectronics #Organic and Molecular Conductors Research #Organic chemistry #Perovskite Materials and Applications #Phase transition #Physics #Quantum mechanics #Thermal #Thermal Expansion and Ionic Conductivity #Thermal expansion #Thermodynamics #cond-mat.str-el
paper · pdf · doi:10.1088/0953-8984/25/34/343201
published as J. Phys.: Condens. Matter 25, 343201 (2013) · 21 pages, 17 figures
openalex publication_date 2013/07/29 · arxiv created 2013/07/31 · arxiv updated 2013/08/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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)2X, 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.