Actions for Sputtering of tin and gallium-tin clusters [electronic resource].

Email RIS file
Bookmark
Report an Issue

Sputtering of tin and gallium-tin clusters [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
27 pages : digital, PDF file
Additional Creators
Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
Tin and gallium-tin clusters have been produced by 4 keV Ar⁺ ion bombardment of polycrystalline tin and the gallium-tin eutectic alloy and analyzed by time-of-flight mass spectrometry. The sputtered neutral species were photoionized with 193 nm (6.4 eV) excimer laser light. Neutral tin clusters containing up to 10 atoms and mixed gallium-tin clusters Ga{sub (n-m)}Sn{sub m} with n ≤ 4 for the neutrals and N ≤ 3 for the sputtered ionic species have been detected. Laser power density dependent intensity measurements, relative yields, and kinetic energy distributions have been measured. The abundance distributions of the mixed clusters have been found to be nonstatistical due to significant differences in the ionization efficiencies for clusters with equal nuclearity but different number of tin atoms. The results indicate that Ga₂Sn and Ga₃Sn like the all-gallium clusters have ionization potentials below 6.4 eV. In the case of Sn₅, Sn₆, GaSn and Ga{sub (n-m)}Sn{sub m} clusters with n=2 to 4 and m>1, the authors detect species that have sufficient internal energy to be one photon ionized despite ionization potentials that are higher 6.4 eV. The tin atom signal that is detected can be attributed to photofragmentation of dimers for both sputtering from polycrystalline tin and from the gallium-tin eutectic alloy.
Report Numbers
E 1.99:anl/chm/cp--83910
E 1.99: conf-9408150--1
conf-9408150--1
anl/chm/cp--83910
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
08/01/1994.
"anl/chm/cp--83910"
" conf-9408150--1"
"DE94018389"
10. international workshop of inelastic ion-surface collisions,Grand Targhee Resort, WY (United States),8-12 Aug 1994.
Pellin, M.J.; Ma, Z.; Calaway, W.F.; Lill, T.
Funding Information
W-31109-ENG-38
View MARC record | catkey: 14063058