| Numéro |
J. Phys. IV France
Volume 09, Numéro PR10, December 1999
International Workshop on Electronic CrystalsECRYS-99 |
|
|---|---|---|
| Page(s) | Pr10-357 - Pr10-359 | |
| DOI | https://doi.org/10.1051/jp4:19991095 | |
International Workshop
on Electronic Crystals
ECRYS-99
J. Phys. IV France 09 (1999) Pr10-357-Pr10-359
DOI: 10.1051/jp4:19991095
1 Department of Physics, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
2 Department of Physics, Gakushuin University, 1-5-1 Mejiro, Toshima, Tokyo 171-8588, Japan
3 Department of Applied Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
© EDP Sciences 1999
ECRYS-99
J. Phys. IV France 09 (1999) Pr10-357-Pr10-359
DOI: 10.1051/jp4:19991095
X-ray structural study of 4kF Wigner crystal and 4kF Peierls state in DCNQI complex with 1/4 filled quasi one-dimensional band
Y. Nogami1, K. Oshima1, K. Hiraki2 and K. Kanoda31 Department of Physics, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
2 Department of Physics, Gakushuin University, 1-5-1 Mejiro, Toshima, Tokyo 171-8588, Japan
3 Department of Applied Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
Abstract
Using newly developed X-ray low temperature camera, 4kF periodic modulation was observed in organic quasi one-dimensional(Q1D) compounds (DMe-DCNQI)2Ag(abbreviated as DMe) and (DI-DCNQI)2Ag (abbreviated as DI). From 4kF satellite reflection intensity distribution in q-space, periodic molecular displacement in DMe and periodic molecular deformation possibly related with molecular valence ordering in DI were found. These modulation patterns suggest occurrence of 4kF bond CDW in DM and 4kF site CDW in DI. The 4kF site CDW possibly caused by a marked intersite correlation V, can be interpreted as a Wigner crystal.
© EDP Sciences 1999