Antiferromagnetism of the half-filled Anderson lattice in one dimension

The ground-state properties of the symmetric periodic Anderson model in one dimension and at half filling have been studied using the local mean-field (LMF) method. We have calculated the ground-state energy, the local f and conduction moment, the effective hybridization, the double occupancy, and t he projected f and conduction density of states. The LMF results are in goo d agreement with Monte Carlo results and with second-order perturbation the ory in the fluctuations results, under the extreme conditions of the one di mensionality. The f- and c-projected density of states show that there is a smooth change in the partial density of states with increasing U, from tho se of an uncorrelated, hybridized system to those expected for a strongly c orrelated system, in which the conduction band and the f states are decoupl ed. [S0163-1829(99)08443-X].