Effective Lennard-Jones potential for cubic metals in the frame of embedded atom model

Generalized Lennard-Jones potentials are proposed in the frame of the embed ded-atom method (EAM) of Daw and Baskes for homonuclear cubic metals. The b asic functions of the model (the pair interaction potential, electron densi ty function and embedding energy function) are presented in analytical form s. It is shown that N-body Finnis-Sinclair potentials and Daw-Baskes embedd ed atom potentials are mathematically equivalent. The developed potentials suit very well most of the fee metals and alkali metals, and they are conve nient for computer simulations. (C) 1999 Elsevier Science B.V. All rights r eserved.