K. Boukheddaden et al., APPLICATION OF A SPIN-1 MODEL TO DESCRIBE LOCALIZED DELOCALIZED TRANSITIONS IN MIXED-VALENCE MOLECULAR-SOLIDS, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 234, 1993, pp. 263-268
A S=1 Ising interacting system described by a Blume-Emery-Griffith Ham
iltonian is proposed to reproduce the different temperatures-dependenc
ies of mixed valence biferrocenium derivatives.