摘要
We have introduced a 5-parameter Morse function to simulate the pairwise poten-tial and studied the adsorption and diffusion of hydrogen atoms on the Ni low indexsurfaces by pairwise method and satistying results were obtained. In this letter,we further investigate the properties of the adsorption and diffusion of hydrogen at-oms on the Ni (115) stepped surface by the same method and the optimumparameters.
