Ne diffraction from Cu(110)

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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 extrapolated 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 rôle in the corrugation of the potential