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Title: Anomalous sputtering behavior observed by quantitative measurements of the population partition of metastable Ni atoms
Authors: Vandeweert, Erno ×
Philipsen, Vicky
Bouwen, W
Thoen, Peter
Weidele, H
Silverans, Roger
Lievens, Peter #
Issue Date: Jan-1997
Publisher: American physical soc
Series Title: Physical Review Letters vol:78 issue:1 pages:138-141
Abstract: The population partition of metastable atoms after ion beam sputtering of polycrystalline Ni was studied. Resonant multiphoton ionization using double resonant two-color two-step photoionization was used. This allows the quantitative measurement of the relative population of all metastable states. The high lying metastable states with excitation energies around 2 eV show populations of the order of 10% of the ground state population which is several orders of magnitude higher than expected. The anomalous population partition is interpreted in the resonant electron tunneling model.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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