title: Phase diagram of a two-dimensional system with anomalous liquid properties.
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.
authors: Department of Physics and Physical Oceanography, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X7, Canada.
authors: Ahmad M
authors: AM
authors: Almudallal
authors: Sergey V
authors: SV
authors: Buldyrev
authors: Ivan
authors: I
authors: Saika-Voivod