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arXiv · 1203.6875

Phase diagram of a two-dimensional system with anomalous liquid properties

Ahmad M. Almudallal·Sergey V. Buldyrev·Ivan Saika-Voivod
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Abstract

Using Monte Carlo simulation techniques, we calculate the phase diagram for a square shoulder-square well potential in two dimensions that has been previously shown to exhibit liquid anomalies consistent with a metastable liquid-liquid critical point. We consider the liquid, gas and five crystal phases, and find that all the melting lines are first order, despite a small range of metastability. One melting line exhibits a temperature maximum, as well as a pressure maximum that implies inverse melting over a small range in pressure.

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Ahmad M. Almudallal, Sergey V. Buldyrev, Ivan Saika-Voivod. 2012-03-30. Phase diagram of a two-dimensional system with anomalous liquid properties. https://doi.org/10.1063/1.4735093

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