Editing Ramp model
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:<math>p_c^*/T_c^* \simeq 0.49 \pm 0.01</math> | :<math>p_c^*/T_c^* \simeq 0.49 \pm 0.01</math> | ||
While this liquid-liquid critical point was long held to be in the stable region of the phase diagram, a high density double-network structure was found to be thermodynamically more stable than the high-density liquid under any conditions. | While this liquid-liquid critical point was long held to be in the stable region of the phase diagram, a high density double-network structure was found to be thermodynamically more stable than the high-density liquid under any conditions. | ||
== Repulsive Ramp Model == | == Repulsive Ramp Model == | ||
In the repulsive ramp case, where <math> W_a = 0 </math>, neither liquid-vapor nor liquid-liquid stable equilibria occur | In the repulsive ramp case, where <math> W_a = 0 </math>, neither liquid-vapor nor liquid-liquid stable equilibria occur | ||
<ref name="lomba"> </ref>. | <ref name="lomba"> reference to Lomba paper</ref>. | ||
However, for this model a low density crystalline phase has been found. | However, for this model a low density crystalline phase has been found. | ||
This solid phase presents re-entrant melting, i.e. this solid melts into the fluid phase as the pressure is increased. | This solid phase presents re-entrant melting, i.e. this solid melts into the fluid phase as the pressure is increased. |