J. Phys. IV France 114 (2004) 383
Anisotropic triangular lattice antiferromagnets, [ Pd(dmit) 2] salts - frustration and dimensional crossover in spin-1/2 Heisenberg systemsM. Tamura and R. Kato
Condensed Molecular Materials Lab., RIKEN, JST-CREST, Wako, Saitama 351-0198, Japan
A way to relate the observed temperature dependence of magnetic susceptibility ( of frustrated triangular antiferromagnets, the [ Pd(dmit) 2] salts, to the deviation from the regular triangular lattice model, is presented from the phenomenological viewpoints. Application to the experimental data affords a measure of the degree of frustration dominated by the intralayer anisotropy depending on the counterion. Key words. Pd(dmit) 2 - triangular lattice - frustration - magnetic susceptibility - crossover.
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