Laser annealing of Ni(001)
作者:
R. P. McConnell,
K. D. Jamison,
F. B. Dunning,
G. K. Walters,
期刊:
Journal of Vacuum Science&Technology A: Vacuum, Surfaces, and Films
(AIP Available online 1983)
卷期:
Volume 1,
issue 4
页码: 1852-1856
ISSN:0734-2101
年代: 1983
DOI:10.1116/1.572227
出版商: American Vacuum Society
关键词: nickel;annealing;laser radiation;irradiation;ruby lasers;electron diffraction;auger electron spectroscopy;sputtering;surface treatments;medium temperature;high temperature
数据来源: AIP
摘要:
The use of laser annealing in the preparation of a clean, well‐ordered Ni(001) surface has been investigated. The surface was cleaned by argon ion bombardment and subsequently irradiated with the fundamental output of a high power, Q‐switched ruby laser. The laser treated surface was characterized by use of Auger electron spectroscopy and both conventional and spin‐polarized LEED, and the data compared to that from a surface prepared by thermal annealing. Laser irradiation of a sputtered surface at energy densities of ∼0.8 J cm−2leads to complete removal of residual argon without segregation of carbon or other contaminants at the surface. However, irradiation at an elevated temperature ∼200 °C is required to obtain a well‐ordered surface. At elevated temperatures, laser annealing provides a surface with cleanness and surface order comparable to that obtained by conventional thermal annealing.
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