English

Eutectic point in a simple lattice gas model

Condensed Matter 2007-05-23 v1

Abstract

We investigate the phase diagram and the critical properties of the adsorbate system sulphur/ruthenium(0001) in the coverage region 14<Θ<13\frac{1}{4} < \Theta < \frac{1}{3} by means of Monte-Carlo simulations of a simple lattice gas model on a triangular lattice. The model contains only repulsive nearest and next-nearest neighbor interactions. Combining results obtained by using both Glauber and Kawasaki kinetics in the simulations we identify two tricritical points, three coexistence regions and a eutectic point in the phase diagram of the system. Our results agree with the findings of recent experimental work on S/Ru(0001). Furthermore we are able to add certain details to the experimentally observed phase diagram.

Keywords

Cite

@article{arxiv.cond-mat/9307015,
  title  = {Eutectic point in a simple lattice gas model},
  author = {M. Sandhoff and H. Pfnuer and H. U. Everts},
  journal= {arXiv preprint arXiv:cond-mat/9307015},
  year   = {2007}
}

Comments

15 pages (incl. 8 Postscript figures), LaTeX, ITP-UH 21/93

R2 v1 2026-07-22T11:46:12.177Z