Title: Substitutional adsorption of K on Fe(100)
Authors: Bergmans, RH ×
Brands, ALGP
vanderGon, AWD
Ceelen, WCAN
Brongersma, HH
Bielen, P
Creemers, Claude #
Issue Date: Apr-1996
Publisher: Elsevier science bv
Series Title: Surface science vol:350 issue:1-3 pages:1-10
Abstract: The adsorption of potassium on Fe(100) was studied by time-of-flight forward scattering and recoiling spectroscopy (TOF-SARS), low energy electron diffraction (LEED) and Auger electron spectroscopy (AES). After heating to 650 K of the potassium saturated surface the formation of a p(3 x 3) potassium superstructure was observed by LEED. TOF-SARS experiments ruled out the adsorption of potassium in the on-top, bridge and four-fold hollow site. The only site which is in agreement with all experimental results is the substitutional site where K replaces an Fe atom of the topmost layer of the crystal. This is the first time a substitutional adsorption site has been found on a bcc surface. On an fcc surface such an adsorption site has been found recently for adsorption of sodium and potassium on Al(111).
ISSN: 0039-6028
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Process Engineering for Sustainable Systems Section
× corresponding author
# (joint) last author

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