Reference : Commensurate monolayers on surfaces: Geometry and ground states
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Commensurate monolayers on surfaces: Geometry and ground states
Tkatchenko, Alexandre mailto [Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Vicentina, Apartado Postal 55-534, México, Distrito Federal 09340, Mexico]
Physical Review B - Condensed Matter and Materials Physics
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[en] We present a procedure for the generation of all rigid commensurate monolayer-surface structures of a given symmetry, up to a certain number of adsorbate particles, Nads, in the unit cell. It is shown that the minimum energy structures in each unit cell are related to a well-defined sequence of Fourier terms of the single-particle-surface potential. This fact allows the prediction of stable commensurate monolayer-surface structures with the only knowledge of Fourier coefficients of the atom-surface potential. The impact of the presented theory for theoretical and experimental determination of atomic and molecular monolayer ground states, as well as its extension to higher dimensions (i.e., for intercalated crystals), is discussed. © 2007 The American Physical Society.

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