One-dimensional fluctuating nanodomains in the charge-transfer molecular system TTF-CA and their first-order crystallization

被引：17
作者：
Buron-Le Cointe, M. [1 ]
Lemee-Cailleau, M. H.
Cailleau, H.
Ravy, S.
Berar, J. F.
Rouziere, S.
Elkaim, E.
Collet, E.
机构：
[1] Univ Rennes 1, CNRS, UMR 6626, Grp Mat Condensee & Mat, F-35042 Rennes, France
[2] Inst Laue Langevin, F-38042 Grenoble, France
[3] LOrme Merisiers, F-91192 Gif Sur Yvette, France
[4] Univ Paris 11, Phys Solides Lab, F-91405 Orsay, France
[5] CNRS, ESRF, F-38042 Grenoble, France
[6] CNRS, Cristallog Lab, F-38042 Grenoble, France
[7] Ctr Univ Paris Sud, CNRS, LURE, F-91898 Orsay, France
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 20期
关键词：
D O I：
10.1103/PhysRevLett.96.205503
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
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