Ground-state properties of two-dimensional symmetrical mixtures in an external field of square symmetry.
The ground-state behavior of two-dimensional symmetrical mixtures subjected to the external potential of square symmetry is discussed. It is demonstrated that different commensurate, high-order commensurate, as well as incommensurate phases may appear depending on the properties of the mixture as well as on the corrugation of external potential. In particular, it is shown that a finite corrugation of external potential considerably influences the stability of different ordered states. The ground-state calculations are confirmed by finite temperature grand canonical Monte Carlo simulations.
Sałamacha
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Department for the Modelling of Physico-Chemical Processes, Faculty of Chemistry, MCS University, 20031 Lublin, Poland.
Patrykiejew
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Sokołowski
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