Neutralization of Ne[sup 10+] ions interacting with a Pt(110) surface

Conference · Sat Jun 05 04:00:00 EDT 1993 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:5517604

Koehrbrueck, R ^[1]; Schippers, S; Hustedt, S; Heiland, W ^[2]; Lecler, D ^[3]; Kemmler, J ^[4]; Bleck-Neuhaus, J ^[5]; Stolterfoht, N ^[6]

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1. Hahn-Meitner Institut Berlin, Glienickerstr. 100. D-1000 Berlin 39 (Germany)
2. Universitaet Osnabrueck,Fachbereich Physik, D-4500 Osnabrueck (Germany)
3. Laboratorie de spectroscopie atomique, ISMRa Campus II, F-14050 Caen Cedex (France)
4. Centre Interdisciplinarie de Recherche avec les Ions Lourds, F-14040 Caen Cedex (France)
5. Universitaet Breman, Fachbereich 1, D-2800 Bremen, FRG (Germany)
6. Hahn-Meitner Isntitut Berlin, Glienickerstr. 100, D-1000 Berlin 39, FRG Laboratorie de spectroscopie atomique, ISMRa Campus II, F-14050 Caen Cedex (France)

We present secondary electron energy spectra of Ne[sup q+] (q=3,7,8,9,10), incident on a solid Pt(110) surface at different angles (10[degree]--90[degree]) with impact energies of 10 q keV. In the case of Ne[sup 10+] projectiles the filling of both K shell holes can be distringuished in the electron energy spectrum. It was found that the L shell is populated with 5 electrons during the first KLL Auger process (K[sup 2]LL) and that the L shell is almost filled during the second one (K[sup 1]LL). The index denotes the number of vacancies in the K shell. The I[sub K][sup 1][sub L[prime]L]/[ital I][sub K][sup 2][sub L[prime]L] intensity ratio varies as a function of the incidence angle and of the observation angle. Therefore, clear evidence is found for sub-surface KLL Auger electron emission. Furthermore, a variation of the incident charge state of the Ne projectile from 10 to 7 results in a shift of the LMM Auger maxima to lower energies, which is consistent with corresponding Hartree-Fock calculations.

• OSTI ID: 5517604
• Report Number(s): CONF-920948--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 274:1
• Country of Publication: United States
• Language: English

Related Subjects

665300* -- Interactions Between Beams & Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOM COLLISIONS
AUGER EFFECT
CHARGE STATES
CHARGED PARTICLES
COLLISIONS
CRYSTALS
ELECTRON EMISSION
ELEMENTS
EMISSION
ENERGY RANGE
ION COLLISIONS
ION-ATOM COLLISIONS
ION-NEUTRALIZATION SPECTROSCOPY
IONS
KEV RANGE
KEV RANGE 10-100
METALS
MONOCRYSTALS
MULTICHARGED IONS
NEON IONS
PLATINUM
PLATINUM METALS
SPECTROSCOPY
TRANSITION ELEMENTS