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Surface States and the Interaction of Neutral Hydrogen with Solid Surfaces

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JournalProceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences
DatePublished - 26 Oct 1981
Issue number1774
Volume378
Number of pages16
Pages (from-to)369-384
Original languageEnglish

Abstract

A non-perturbative approach is suggested to the problem of the interaction of neutral atoms with solid surfaces. The nature of the interaction governing the motion of the system is first examined and the leading effective interaction Hamiltonian is derived by ignoring retardation and hydrodynamic pressure effects. In the adiabatic approximation this interaction is a function of the distance R of the proton from the material surface. The case of small but finite R is explored by the numerical solution of a Schrodinger equation, and the results clearly demonstrate the involvement of the states that are weakly bound to the surface of the material. The variation of level energies is given for the ground state and for some of the excited states together with plots for the corresponding probability distributions.

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