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arXiv · cond-mat/9307015

Eutectic point in a simple lattice gas model

M. Sandhoff·H. Pfnuer·H. U. Everts
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Abstract

We investigate the phase diagram and the critical properties of the adsorbate system sulphur/ruthenium(0001) in the coverage region $\frac{1}{4} < Θ< \frac{1}{3}$ 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.

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M. Sandhoff, H. Pfnuer, H. U. Everts. 1993-07-09. Eutectic point in a simple lattice gas model. https://arxiv.org/abs/cond-mat/9307015

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