One-Dimensional Fluctuating Nanodomains in the Charge-Transfer Molecular System TTF-CA and their First-Order Crystallization

Journal Article · Fri May 26 00:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.96.205503· OSTI ID:20777252

Buron-Le Cointe, M; Cailleau, H; Collet, E ^[1]; Lemee-Cailleau, M H ^[1]; Ravy, S ^[2]; Berar, J F ^[3]; Rouziere, S ^[4]; Elkaiem, E ^[2]

---

1. Groupe Matiere Condensee et Materiaux, UMR 6626 CNRS-Universite Rennes 1, 35042 Rennes (France)
2. Synchrotron-Soleil, L'Orme des Merisiers, Saint-Aubin BP-48, 91192 Gif-sur-Yvette Cedex (France)
3. ESRF and Laboratoire de Cristallographie CNRS, 38042 Grenoble (France)
4. Laboratoire de Physique des Solides, Universite Paris-Sud, 91405 Orsay (France)

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.

• OSTI ID: 20777252
• Journal Information: Physical Review Letters, Vol. 96, Issue 20; Other Information: DOI: 10.1103/PhysRevLett.96.205503; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHLORANIL
CRYSTALLIZATION
DIFFUSE SCATTERING
EXCITATION
FLUCTUATIONS
IRRADIATION
NANOSTRUCTURES
PHYSICAL PROPERTIES
TETRATHIAFULVALENE
THERMAL EQUILIBRIUM
X-RAY DIFFRACTION