Image potential and ion trajectories in secondary-ion mass spectrometry

R. A. Gibbs, S. P. Holland, K. E. Foley, B. J. Garrison, N. Winograd

Research output: Contribution to journalReview articlepeer-review

43 Scopus citations

Abstract

The angle and energy distributions of Ni+ ions ejected from ion-bombarded Ni(001) c(2×2)-CO are shown to be in excellent agreement with classical trajectory calculations for Ni atoms if the calculations are corrected for the presence of an image force. Two important consequences of this observation are that the ionization probability R+ is nearly isotropic and that it is only weakly dependent on particle velocity. These constraints impose severe restrictions on proposed ionization theories.

Original languageEnglish (US)
Pages (from-to)6178-6181
Number of pages4
JournalPhysical Review B
Volume24
Issue number10
DOIs
StatePublished - 1981

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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