Journalartikel

Jahr der Veröffentlichung: 1991

Seiten: A570-A570

Zeitschrift: Surface science: Letters

Bandnummer: 257

Heftnummer: 1-3

ISSN: 0039-6028

DOI Link: https://doi.org/10.1016/0167-2584(91)91110-I

Verlag: North-Holland Publ. Co.

Abstract: 
The neutralization of slow He+ and He2+ ions on Pb surfaces allows the study of Auger capture, resonant capture into autoionizing states and of a Landau-Zener-type two-state charge exchange process. In the primary energy range of 300 eV to 6 keV the processes are experimentally accessible by measuring the reflected ion energy spectra and the secondary electron energy spectra. The results lead to estimates of the transition rates (1.7-3.0 x 10(15) s-1 for Auger capture and 4.2 x 10(15) s-1 for resonant capture into autoionizing states) of the charge exchange processes and of the distances (3.55-4.0 angstrom for the Landau-Zener process) where these processes in front of the metal surface occur.

Harvard-Zitierstil: Schippers, S., Oelschig, S., Heiland, W., Folkerts, L., Morgenstern, R., Eeken, P., et al. (1991) Neutralization of He+ and He2+ on Pb surfaces, Surface science: Letters, 257(1-3), p. A570. https://doi.org/10.1016/0167-2584(91)91110-I

APA-Zitierstil: Schippers, S., Oelschig, S., Heiland, W., Folkerts, L., Morgenstern, R., Eeken, P., Urazgil'din, I., & Niehaus, A. (1991). Neutralization of He+ and He2+ on Pb surfaces. Surface science: Letters. 257(1-3), A570. https://doi.org/10.1016/0167-2584(91)91110-I