Ground states of a one-dimensional lattice-gas model with an infinite range nonconvex interaction. A numerical study

Cz. Oleksy; J. Lorenc

doi:10.1103/physrevb.54.5955

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Ground states of a one-dimensional lattice-gas model with an infinite range nonconvex interaction. A numerical study

Cz. Oleksy·J. Lorenc

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Abstract

We consider a lattice-gas model with an infinite range pairwise noncovex interaction. It might be relevant, for example, for adsorption of alkaline elements on W(112) and Mo(112). We study a competition between the effective dipole-dipole and indirect interactions. The resulting ground state phase diagrams are analysed (numerically) in detail. We have found that for some model parameters the phase diagrams contain a region dominated by several phases only with periods up to nine lattice constants. The remaining phase diagrams reveal a complex structure of usually long periodic phases. We also discuss a possible role of surace states in phase transitions.

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Cz. Oleksy, J. Lorenc. 1996-06-07. Ground states of a one-dimensional lattice-gas model with an infinite range nonconvex interaction. A numerical study. https://doi.org/10.1103/physrevb.54.5955

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