J. Phys. Colloques
Volume 49, Number C8, Décembre 1988Proceedings of the International Conference on Magnetism
|Page(s)||C8-709 - C8-710|
J. Phys. Colloques 49 (1988) C8-709-C8-710
SOLUBLE ONE-DIMENSIONAL NARROW-BAND MODEL WITH ARBITRARY SPIN S AND POSSIBLE RELEVANCE TO HEAVY-FERMIONS AND RESONATING VALENCE BONDSKong-Ju-Bock Lee1 et P. Schlottmann2
1 Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, U.S.A.
2 Supported by U.S. DOE contract DE-FG02-87ER45333.
A lattice model consisting of a single narrow band and excluded double occupancy of the sites is introduced. Fermions on nearest-neighbor sites interact via a charge interaction and spin-exchange. The model is soluble for arbitrary spin and special values of the couplings.