Size dependence of the electronic and magnetic properties of fullerenes (C-60-C-240)

We use the Gutzwiller method for studying various characteristic energies of fullerences in the free state (first and second ionization energy, electron affinity and singlet and triplet excitation energies). The stability of spin density wave (SDW) in fullerene has been investigated. The critical value of (U/beta) (U intraatomic correlation energy, beta transfer energy to stabilize SDW) is equal to 3 in C-60 and 4.25 in C-240 (icosahedrally symmetric C-240).