J. Phys. IV France
Volume 131, December 2005
Page(s) 39 - 42
Published online 18 January 2006
International Workshop on Electronic Crystals
S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 39-42

DOI: 10.1051/jp4:2005131008

X-ray structural study of charge and anion orderings of TMTTF salts

Y. Nogami1, 2, T. Ito1, K. Yamamoto1, N. Irie1, S. Horita1, T. Kambe1, N. Nagao1, K. Oshima1, N. Ikeda3 and T. Nakamura4

1  Department of Physics, Okayama University, Okayama, Japan
2  CREST, JST, Saitama, Japan
3  Japan Synchrotron Radiation Research Institute, Hyogo, Japan
4  Institute for Molecular Science, Aichi, Japan

High resolution X-ray structure analyses and electronic structure calculation revealed the condition for the charge ordering(CO) observed in the (TMTTF)2X (Fabre) salts. The phase diagram of the electronic states including 2$k_{\rm F}$ and 4$k_{\rm F}$ CO has been proposed associated with magnitudes of molecular dimerization and tetramerization.

© EDP Sciences 2005