ANALOGIES OF FTNPD RESULTS BETWEEN THE SYSTEMS C(2×2)Na(1s)-Ni(001) AND C(2×2)S(1s)-Ni(001)

Determining the structure of solid surface is an important subject in surface physics and this will make available the understanding of the character of solid surface. In the later seventies, based on low energy electron diffraction (LEED), a new surface technique, normal photoelectron diffraction (NPD), has been developedr. All of the multi-