Unusual 2kF CDW state with enhanced charge ordering in β-(BEDT-TTF)2AsF6 and PF6

Yoshio Nogami, T. Mori

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

X-ray superstructure analyses of the 2kf CDW states for two-dimensional organic compounds β-(BEDT-FTF)2PF6 and AsF6 were presented Molecular ionicity of BEDT-TTF was evaluated with both intramolecular bond lengths and molecular shape. Strong bending of quasi-neutral BEDT-TTF molecules coupled with the enhanced amplitude of charge modulation was observed Conformational ordering of the terminal ethylenes of BEDT-TTF molecules and dimerization between quasi-ionic BEDT-TTF molecules were also observed These characteristic indicates this CDW is not Peierls-Frohlich type but coupled with the internal degree of the molecular shape and possibly the intersite Coulomb repulsion.

Original languageEnglish
Title of host publicationJournal De Physique. IV : JP
EditorsS. Brazovskii, N. Kirova, P. Monceau
Volume12
Edition9
Publication statusPublished - Nov 2002
EventInternational Workshop on Electronic Crystals - ECRYS 2002 - Saint Flour, France
Duration: Sep 2 2002Sep 7 2002

Other

OtherInternational Workshop on Electronic Crystals - ECRYS 2002
CountryFrance
CitySaint Flour
Period9/2/029/7/02

Fingerprint

molecules
dimerization
organic compounds
ethylene
modulation
x rays

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Nogami, Y., & Mori, T. (2002). Unusual 2kF CDW state with enhanced charge ordering in β-(BEDT-TTF)2AsF6 and PF6. In S. Brazovskii, N. Kirova, & P. Monceau (Eds.), Journal De Physique. IV : JP (9 ed., Vol. 12)

Unusual 2kF CDW state with enhanced charge ordering in β-(BEDT-TTF)2AsF6 and PF6. / Nogami, Yoshio; Mori, T.

Journal De Physique. IV : JP. ed. / S. Brazovskii; N. Kirova; P. Monceau. Vol. 12 9. ed. 2002.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nogami, Y & Mori, T 2002, Unusual 2kF CDW state with enhanced charge ordering in β-(BEDT-TTF)2AsF6 and PF6. in S Brazovskii, N Kirova & P Monceau (eds), Journal De Physique. IV : JP. 9 edn, vol. 12, International Workshop on Electronic Crystals - ECRYS 2002, Saint Flour, France, 9/2/02.
Nogami Y, Mori T. Unusual 2kF CDW state with enhanced charge ordering in β-(BEDT-TTF)2AsF6 and PF6. In Brazovskii S, Kirova N, Monceau P, editors, Journal De Physique. IV : JP. 9 ed. Vol. 12. 2002
Nogami, Yoshio ; Mori, T. / Unusual 2kF CDW state with enhanced charge ordering in β-(BEDT-TTF)2AsF6 and PF6. Journal De Physique. IV : JP. editor / S. Brazovskii ; N. Kirova ; P. Monceau. Vol. 12 9. ed. 2002.
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