Theory of positronium momentum spectra at metallic surfaces

A. B. Walker*, R. M. Nieminen

*Corresponding author for this work

Research output: Contribution to journalLetterScientificpeer-review

15 Citations (Scopus)


Theoretical calculations of momentum distributions of positronium (Ps) atoms ejected from clean metal surfaces are presented and compared with recent experimental results. The authors find that the momentum dependence of the Ps-forming interaction significantly affects the shape of the spectra. They also show that, within the model, the energy distribution of Ps atoms does not vary directly with the density of electronic states just outside the surface.

Original languageEnglish
Pages (from-to)L295-L303
Number of pages9
JournalJournal of Physics F: Metal Physics
Issue number12
Publication statusPublished - 1986
MoE publication typeA1 Journal article-refereed


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