The Kondo temperature $T_K$ and the Kondo exchange energy J are local quantities that are closely related to the density of states. In a thin film, the changes in the density of states near surfaces have strong influence on the values of $T_K$ and J. In this paper, we present calculations of these quantities for a metallic thin film; we show that they depend on the position of the magnetic impurity in the film and that $T_K$ and J are distributed through the film.

• Received 16 August 1999

DOI:https://doi.org/10.1103/PhysRevB.61.6785