Auger-electron emission from slow, highly charged ions interacting with solid Cu targets

Journal Article · Wed Apr 01 04:00:00 EST 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.45.4653· OSTI ID:7105472

Koehrbrueck, R; Sommer, K; Biersack, J P ^[1]; Bleck-Neuhaus, J ^[2]; Schippers, S ^[3]; Roncin, P ^[4]; Lecler, D; Fremont, F; Stolterfoht, N ^[5]

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1. Hahn-Meitner Institut Berlin, Glienickerstrasse 100, D-1000 Berlin 39 (Germany)
2. Universitaet Bremen, Fachbereich 1, D-2800 Bremen (Germany)
3. Universitaet Osnabrueck, Fachbereich Physik, D-4500 Osnabrueck (Germany)
4. Laboratoire des Collisions Atomiques et Moleculaires, Universite Paris Sud, F-91405 Orsay CEDEX (France)
5. Laboratoire de Spectroscopie Atomique, ISMRa Campus II, F-14050 Caen CEDEX (France)

Secondary-electron energy spectra were measured for Ar{sup {ital q}+} ({ital q}=9 and 16) and the H-like ions N{sup 6+}, O{sup 7+}, and Ne{sup 9+}, incident on solid Cu surfaces at an angle of 10{degree}. The impact energy was varied from 10{ital q} to 20{ital q} keV. Auger electrons were detected at various observation angles from 20{degree} to 180{degree} with respect to the incident beam. From the Doppler shift of the projectile Auger electrons, the {ital L} Auger electrons of argon and neon are found to be emitted from ions whose flight direction is parallel to the incident beam and the {ital K} Auger electrons of nitrogen, oxygen, and neon are observed to be emitted from deflected ions. Evidence is provided for incident Ne{sup 9+} and Ar{sup 16+} that the {ital L} shells are incompletely filled when the projectiles reach the surface. The data analysis is supported by model calculations.

• OSTI ID: 7105472
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 45:7; ISSN PLRAA; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

665300* -- Interactions Between Beams & Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ARGON IONS
AUGER EFFECT
CHARGED PARTICLES
COLLISIONS
COPPER
ELEMENTS
ENERGY RANGE
EV RANGE
IONS
METALS
MULTICHARGED IONS
NEON IONS
NITROGEN IONS
OXYGEN IONS
TRANSITION ELEMENTS