Abstract
Using symmetry considerations and exact-diagonalization techniques, we examine s-wave pairing and charge-density correlations in the three-dimensional negative-U Hubbard model on the fcc lattice. The correlations as functions of band filling and hopping and interaction parameters are studied. Results are presented for general cases. Implications for properties of alkali-metal-intercalated C 60 materials are discussed
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have