Direct structure determination of a composite double-layer surface alloy by x-ray photoelectron diffraction: p (2×2)-Na/Al(111)

Fasel, Roman

doi:10.1103/PhysRevB.52.R2313

Direct structure determination of a composite double-layer surface alloy by x-ray photoelectron diffraction: p (2×2)-Na/Al(111)

Auteur(s)

Fasel, Roman

Editeur(s)

Aebi, Philipp

Schlapbach, Louis

Osterwalder, Jürg

Date de parution

1995

In

Physical Review B, American Physical Society (APS), 1995/52/4/R2313-R2316

Résumé

The local structure of p(2×2)-Na/Al(111) has been investigated using angle-scanned full hemispherical x-ray photoelectron diffraction. The resulting diffraction patterns allow a direct and unequivocal determination of the surface atomic structure. Even though Na and Al are completely immiscible in the bulk, the p(2×2)-Na/Al(111) phase consists of a composite double-layer surface alloy where Na atoms take substitutional and fcc hollow sites and Al atoms removed from the surface occupy hcp hollow sites.

URI

https://libra.unine.ch/handle/123456789/16969

DOI

10.1103/PhysRevB.52.R2313

Autre version

http://dx.doi.org/10.1103/PhysRevB.52.R2313

Type de publication

Resource Types::text::journal::journal article

Dossier(s) à télécharger

main article: Fasel_R._-_Direct_structure_determination_of_a_composite_20080331.pdf (1.62 MB)

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Direct structure determination of a composite double-layer surface alloy by x-ray photoelectron diffraction: <i>p</i> (2×2)-Na/Al(111)