Excitation of target Auger-electron emission by the impact of highly charged ions: N sup 6+ , O sup 7+ , and Ne sup 9+ on Pt(110)

Journal Article · Thu Oct 01 00:00:00 EDT 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.46.4003· OSTI ID:6996948

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

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1. Universitaet Osnabrueck, D-4500 Osnabrueck (Germany)
2. Hahn-Meitner-Institut Berlin, D-1000 Berlin 39 (Germany)
3. Universitaet Bremem, D-2800 Bremen (Germany)
4. Centre Interdisciplinaire de Recherche avec les Ions Lourds, F-14040 Caen CEDEX (France)
5. Laboratoire de Spectroscopie Atomique, ISMRa Universite Caen, F-14021 Caen (France)

We studied the interaction of highly charged ions on metal surfaces leading to the emission of electrons from the projectile and from the target. The target electrons are due to potential emission, kinetic emission, and Auger-electron emission. In our electron spectra two types of target Auger electrons are distinguished. Electrons near 135 and 220 eV are ascribed to Pt {ital N}{sub 45}{ital O1}{ital O23} and {ital N}{sub 45}{ital N67}{ital V} Auger transitions. They are caused by {ital K}-vacancy transfer into the Pt {ital N} shell and are only emitted under bombardment with N{sup 6+} and O{sup 7+}. The other type of electrons near 40 and 60 eV are ascribed to Pt {ital O}{sub 23}{ital VV} and {ital N}{sub 67}{ital VV} Auger transitions. They are due to direct ionization and are emitted under bombardment with each projectile used. According to our analysis, the initial projectile {ital K}-shell vacancy survives the transport to and at least 8{times}10{sup {minus}16} s within the target surface.

• OSTI ID: 6996948
• Journal Information: Physical Review A. General Physics; (United States), Vol. 46:7; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
NEON
SCATTERING
NITROGEN
ION COLLISIONS
OXYGEN
PLATINUM
AUGER EFFECT
CRYSTAL FACES
ELECTRON EMISSION
ENERGY-LEVEL TRANSITIONS
KEV RANGE 10-100
MULTICHARGED IONS
PROJECTILES
TARGETS
CHARGED PARTICLES
COLLISIONS
ELEMENTS
EMISSION
ENERGY RANGE
FLUIDS
GASES
IONS
KEV RANGE
METALS
NONMETALS
PLATINUM METALS
RARE GASES
TRANSITION ELEMENTS
665300* - Interactions Between Beams & Condensed Matter- (1992-)