J. Phys. IV France
Volume 114, April 2004
Page(s) 327 - 329

J. Phys. IV France
114 (2004) 327
DOI: 10.1051/jp4:2004114073

13C-NMR study on $\kappa $-(BEDT-TTF) 2X

A. Kawamoto1, 1, Y. Honma1, M. Yamashita1, J. Sasaki1, S.-I. Okitsu1 and K.-I. Kumagai1

1  Division of Science, Graduate School of Science, Hokkaido University, Kita10 Nishi8 Kita-ku, Sapporo, Hokkaido 060-0810, Japan

$\kappa $-(BEDT-TTF) 2X salts show the variety physical properties from the superconductivity to the magnetic ordering. It is important to investigate the characters of $\kappa $-(BEDT-TTF) 2X from microscopic probes, systematically. 13C-NMR is a one of the most powerful tool for this aim. In order to study the variety physical properties on of $\kappa $-(BEDT-TTF) 2X, We performed single crystal 13C-NMR works on deuterized samples, alloy system etc. Here we report especially about $\kappa $-(BEDT-TTF) 2Cu 2(CN) 3 from our a several approaches in this proceedings. Recently, for $\kappa $ -(BEDT-TTF) 2Cu 2(CN) 3, the magnetic frustrations are pointed out. However, we found the evidence of the electron localization phenomenon on this salt from 13C-NMR work. Key words. $\kappa $-(BEDT-TTF) 2 Cu 2(CN) 3, 13C-NMR, Electron Localization.

© EDP Sciences 2004