DISORDER-INDUCED LOCAL MAGNETIC-MOMENTS IN WEAKLY CORRELATED METALLICSYSTEMS

We consider the formation and the Kondo effect of local magnetic momen ts in the Anderson-Hubbard model with off-diagonal disorder. The exist ence of moments at sites weakly coupled to the environment is deduced in effective medium approximation. The distribution of moments is calc ulated both deep in the metallic phase and near the metal-insulator tr ansition. We discuss the Kondo quenching of the moments and derive a d istribution of local Kondo temperatures.