Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5348697 | Applied Surface Science | 2015 | 6 Pages |
Abstract
Adsorption and formation of ordered structures of Ho atoms on Mo(1 1 2) surface are studied by LEED, work function measurement and first-principle calculations. It is found that the most favorable energetically periodic structure is (3 Ã 2) structure at coverage of θ = 2/3, in which separation of Ho atoms is very close to metallic diameter of holmium. LEED measurements and the ground state analysis have revealed that structures (4 Ã 1) with θ = 3/4 and (5 Ã 1) with θ = 4/5 are also favorable. There are no ordered structures at low coverages although the long-range indirect interaction between adatoms is present.
Keywords
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
MichaÅ SzczeÅniak, CzesÅaw Oleksy, Jakub ÅliwiÅski, RafaÅ Szukiewicz, Marcin Wiejak, Jan KoÅaczkiewicz,