A Model of Single Molecule Magnet Behavior

摘要

We report a model for the explanation of the single molecule magnet behavior of the [CuuLTbD1(hfac)2]2 cluster The model takes into account the crystal field acting on the Tbnl -ion and the exchange interaction between the Tbm and Cu11 ions. The energies of the low-lying levels are shown to increase with the decrease of the mean value of the z-projection of the total angular momentum of the cluster, thus forming a barrier for magnetization reversal that is in accordance with the experimental evidence.