Title of article
Surfactant properties of chemisorbed oxygen in Fe/Fe(001) homoepitaxy: a He diffraction study
Author/Authors
Bonanno، نويسنده , , P. and Canepa، نويسنده , , M. and Cantini، نويسنده , , P. and Moroni، نويسنده , , R. and Mattera، نويسنده , , L. and Terreni، نويسنده , , S.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2000
Pages
5
From page
697
To page
701
Abstract
He diffraction measurements show that preadsorption of an O(1×1) phase on Fe(001) promotes two-dimensional growth of Fe at temperatures below 400 K, in contrast to the island growth observed on the bare Fe(001) surface. Oxygen floats at the surface, acting as a surfactant. After repeated cycles of film annealing and Fe re-deposition, a beat is observed in the pattern of He reflectivity measured as a function of deposition time. The beat is assigned to the growth on surface domains characterized by a different surfactant efficiency.
Keywords
Oxygen , growth , Iron , Low index single crystal surfaces , Atom–solid scattering and diffraction – elastic
Journal title
Surface Science
Serial Year
2000
Journal title
Surface Science
Record number
1688304
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