Low energy electron diffraction study of the krypton (111) surface

Abstract

Krypton single crystals of the (111) surface orientation have been epitaxially grown on the (100) face of iridium. LEED intensity-energy spectra have been obtained for the specular and first order non-specular beams of the (111) krypton surface. The temperature dependence of the reflected intensities has also been monitored. Analysis in the kinematic scattering formalism has yielded the krypton effective surface Debye temperature as a function of electron energy. Comparison of the measured effective Debye temperature with the results of a kinematic calculation has indicated probable applicability of the Lennard-Jones (6–12) interatomic potential to surface atoms of krypton.