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EELFS Determination of Interatomic Distances in Adsorbed Monolayers

Atrei, A. / Bardi, U. / Rovida, G. / Torrini, M. / Zanazzi, E. / Maglietta, M.

Abstract In a previous work /1/, the chemisorption of carbon on cobalt was successfully investigated with EELFS (Extendend Energy Loss Fine Structure; see, for istance Ref.2). In that study, the nearest neighbor C-Co distance was determined for the Co (11 $$ \overline 2 $$ 0)(2×5)-C phase. The aim of the present investigation was to observe possible structural differences when carbon is adsorbed on a quite different substrate plane. Thus, measurements were performed on the (0001) cobalt face, where the atoms are close packed, unlike the (11 $$ \overline 2 $$ 0) surface which presents typical zig-zag rows. In a previous study of carbon chemisorption on the (0001) cobalt surface /3/, the formation of a (4×4) superstructure was observed. Since this phase is too complex to be analysed by LEED, we used the EELFS tecnique to evaluate the structural parameters.

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EELFS Determination of Interatomic Distances in Adsorbed Monolayers

Atrei, A. / Bardi, U. / Rovida, G. / Torrini, M. / Zanazzi, E. / Maglietta, M.

Abstract In a previous work /1/, the chemisorption of carbon on cobalt was successfully investigated with EELFS (Extendend Energy Loss Fine Structure; see, for istance Ref.2). In that study, the nearest neighbor C-Co distance was determined for the Co (11 $$ \overline 2 $$ 0)(2×5)-C phase. The aim of the present investigation was to observe possible structural differences when carbon is adsorbed on a quite different substrate plane. Thus, measurements were performed on the (0001) cobalt face, where the atoms are close packed, unlike the (11 $$ \overline 2 $$ 0) surface which presents typical zig-zag rows. In a previous study of carbon chemisorption on the (0001) cobalt surface /3/, the formation of a (4×4) superstructure was observed. Since this phase is too complex to be analysed by LEED, we used the EELFS tecnique to evaluate the structural parameters.

EELFS Determination of Interatomic Distances in Adsorbed Monolayers

Atrei, A. / Bardi, U. / Rovida, G. / Torrini, M. / Zanazzi, E. / Maglietta, M.

Abstract In a previous work /1/, the chemisorption of carbon on cobalt was successfully investigated with EELFS (Extendend Energy Loss Fine Structure; see, for istance Ref.2). In that study, the nearest neighbor C-Co distance was determined for the Co (11 $$ \overline 2 $$ 0)(2×5)-C phase. The aim of the present investigation was to observe possible structural differences when carbon is adsorbed on a quite different substrate plane. Thus, measurements were performed on the (0001) cobalt face, where the atoms are close packed, unlike the (11 $$ \overline 2 $$ 0) surface which presents typical zig-zag rows. In a previous study of carbon chemisorption on the (0001) cobalt surface /3/, the formation of a (4×4) superstructure was observed. Since this phase is too complex to be analysed by LEED, we used the EELFS tecnique to evaluate the structural parameters.

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Title:

EELFS Determination of Interatomic Distances in Adsorbed Monolayers

Contributors:

Atrei, A. (author) / Bardi, U. (author) / Rovida, G. (author) / Torrini, M. (author) / Zanazzi, E. (author) / Maglietta, M. (author)

Published in:

The Structure of Surfaces II ; 214-218

Springer Series in Surface Sciences ; 11

Publication date:

1988-01-01

Size:

5 pages

ISBN:

978-3-642-73345-1 , 978-3-642-73343-7

ISSN:

DOI:

https://doi.org/10.1007/978-3-642-73343-7_35

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Radial Distribution Function , Cobalt Atom , Clean Metal , Derivative Mode , LEED Pattern Physics , Surface and Interface Science, Thin Films , Surfaces and Interfaces, Thin Films , Crystallography

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