Figure 3
(a) The magnetization of PTC as a function of applied field parallel and perpendicular to the chain axis. The dashed lines are fits to a Brillouin function to extract a check for the g factors derived from the temperature dependence. The curves tend to ∼ 3 μB as expected given the crystalline electric field environment. As confirmed by the fits, the saturation field is larger than the 7 T field range probed. (b) The susceptibility and inverse susceptibility for both PTC and PTCM. The solid lines are fits to a Curie-type susceptibility (). |