AB-INITIO ADIABATIC NOBLE GAS-METAL INTERACTION - THE ROLE OF THE INDUCED POLARIZATION CHARGE

Within an ab-initio DFT-LDA framework, we have investigated the polari zation induced on He and Ne atoms by a jellium (Al-like) surface. It i s shown that the displaced charge of the gas-metal system is spherical ly distributed around Ne. It is polarized instead for He with a dipole moment having the negative lobe towards the jellium surface. A relati onship between the two different polarizations of He and Ne with corru gating and anti-corrugating behavior is discussed. (C) 1998 Elsevier S cience B.V. All rights reserved.