Repulsive interaction of the helium atom with a metal surface

Matti Manninen*, J. K. Nørskov, M. J. Puska, Cyrus Umrigar

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

103 Citations (Scopus)
107 Downloads (Pure)

Abstract

The repulsive part of the helium scattering potential at a surface is approximately proportional to the surface electron density. The proportionality coefficient is shown to be a well-defined quantity, which can be related to the electron-helium scattering length. The spread in the values of the proportionality constant suggested in the literature is shown to be due to different definitions of the coefficient or due to inadequate calculational methods. The value calculated using the local density approximation with a self-interaction correction is in very good agreement with the electron-scattering-length measurements.

Original languageEnglish
Pages (from-to)2314-2316
Number of pages3
JournalPhysical Review B
Volume29
Issue number4
DOIs
Publication statusPublished - 15 Feb 1984
MoE publication typeA1 Journal article-refereed

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