Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2006-12-09
Physics
Condensed Matter
Soft Condensed Matter
Scientific paper
We investigate the phase diagram of a three-dimensional associating gas $(ALG)$ model. This model combines orientational ice-like interactions and ``van der Waals'' that might be repulsive, representing, in this case, a penalty for distortion of hydrogen bonds. These interactions can be interpreted as two competing distances making the connection between this model and continuous isotropic soft-core potentials. We present Monte Carlo studies of the $ALG$ model showing the presence of two liquid phase, two critical points and A density anomaly.
Balladares Aline L.
Barbosa Marcia C.
Girardi Mauricio
Henriques Vera B.
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