One-dimensional fluctuating nanodomains in the charge-transfer molecular system TTF-CA and their first-order crystallization.
We report on the direct observation by x-ray diffuse scattering measurements of thermally induced one-dimensional nanoscale ordered fluctuations in the mixed-stack charge-transfer molecular system tetrathiafulvalene-p chloranil (TTF-CA), the prototype for the neutral-ionic phase transition. The unusual physical properties of this compound are considered to be driven by such one-dimensional excitations. The results are discussed in relation to previous experimental and theoretical experiments both at thermal equilibrium and under light irradiation.
Buron-Le Cointe
M
M
Groupe Matière Condensée et Matériaux, UMR 6626 CNRS-Université Rennes 1, 35042 Rennes, France.
Lemée-Cailleau
M H
MH
Cailleau
H
H
Ravy
S
S
Bérar
J F
JF
Rouzière
S
S
Elkaïm
E
E
Collet
E
E