Models for monolayers adsorbed on a square substrate

Ofer Biham*, Chen Lee-Wen, Gianfranco Vidali

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Motivated by recent experimental studies of Hg and Pb monolayers on Cu(001) we introduce a zero temperature model of a monolayer adsorbed on a square substrate. Lennard-Jones potentials are used to describe the interaction between pairs of adlayer-adlayer and adlayer-substrate atoms. We study a special case in which the monolayer atoms form a perfect square structure and the lattice constant, position and orientation with respect to the substrate can vary to minimize the energy. We introduce a rule based on the Farey tree construction to generate systematically the most energetically favored phases and use it to calculate the phase diagram in this model.

Original languageAmerican English
Pages (from-to)815-819
Number of pages5
JournalSurface Science
Issue numberPART 2
StatePublished - 10 May 1993
Externally publishedYes

Bibliographical note

Funding Information:
One of us (G.V.1 would like to acknowledge partial supportf rom NSF grant 8802512.


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