SR study of an antiferromagnetic Mott insulator -(BEDT-TTF)ICl

Sato, Kazuhiko*; Taniguchi, Hiromi*; Kawamoto, Atsushi*; Higemoto, Wataru

Physica B; Condensed Matter, 374-375, p.99 - 101, 2006/03

https://doi.org/10.1016/j.physb.2005.11.025

Zero-field SR measurements on the antiferromagnetic Mott insulator -(BEDT-TTF)ICl were performed in order to study themicroscopic magnetic properties of this organics. The volume fraction of the antiferromagnetic phase was found to be temperature independent. Muon precession frequency, which is proportional to the magnitude of the magnetic moment at the dimer of two BEDTTTF molecules, does not follow the simple model based on the mean-field approximation.