Ne diffraction from Cu(110)

Abstract

Experimental results of diffraction of thermal energy (64 meV) Ne atoms from the (110) face of copper are presented. Diffraction is observed up to fifth order and strong selective adsorption features were measured. The bound state energy levels are fitted using the shifted Morse hybrid potential. Diffraction intensities extrepolated to zero kelvin are fitted using the so called modified corrugated Morse potential (MCMP) which is a realistic soft potential. The potential is found to be more corrugated and steeper in its repulsive part than in the Cu(110)/He case. This shows that attractive forces play an important role in the corrugation of the potential Presentation des resultats experimentaux de la retrodiffusion d'atomes de neon d'energie thermique sur la face (110) du cuivre. La diffraction est observee jusqu'au cinquieme ordre ainsi que le phenomene de resonance avec les etats lies