The structure of Al(111) (√3x√3)R30°-Na: A LEED study

J. Burchhardt, Martin Meedom Nielsen, D.L. Adams, E. Lundgren, J.N. Andersen

Research output: Contribution to journalJournal articleResearchpeer-review


The atomic geometry of the Al(111)-(root 3 X root 3)R 30 degrees-structure formed by adsorption of Na on Al(111) at room temperature has been determined by analysis of extensive low-energy electron-diffraction (LEED) measurements. It is shown conclusively that Na atoms occupy a sixfold-coordinate site formed by displacing every third Al atom in the first layer of the substrate. This confirms the results of a recent study by surface extended x-ray-absorption fine structure.
Original languageEnglish
JournalPhysical Review B
Issue number7
Pages (from-to)4718-4724
Publication statusPublished - 1994
Externally publishedYes

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