Ramp model: Difference between revisions

Revision as of 12:18, 29 June 2007

The ramp model is described by:

Φ (r) = {\begin{matrix} \infty & r < σ \\ W_{r} - (W_{r} - W_{a}) \frac{r - σ}{d_{a} - σ} & σ \leq r \leq d_{a} \\ W_{a} - W_{a} \frac{r - d_{a}}{d_{c} - d_{a}} & d_{a} < r \leq d_{c} \\ 0 & r > d_{c} \end{matrix}

where $Φ (r)$ is the intermolecular pair potential, $W_{r} > 0$ and $W_{a} < 0$ .

Graphically, one has:

where the red line represents an attractive implementation of the model, and the green line a repulsive implementation.

@@ Line 23: / Line 23: @@
 #[http://dx.doi.org/10.1063/1.1677857  G. Stell and P. C. Hemmer, "Phase Transitions Due to Softness of the Potential Core", Journal of Chemical Physics' '''56''', pp. 4274-4286 (1972)]
 #[http://dx.doi.org/10.1063/1.480241 E. A. Jagla "Core-softened potentials and the anomalous properties of water", Journal of Chemical Physics' '''111''', pp. 8980-8986  (1999)]
-#[http://arxiv.org/abs/cond-mat/0703509 E. Lomba, N. G. Almarza, C. Martin, C. McBride "Phase behaviour of attractive and repulsive ramp fluids: integral equation and computer simulation studies" arxiv.org/abs/cond-mat/0703509]
+#[http://dx.doi.org/10.1063/1.2748043  E. Lomba, N. G. Almarza, C. Martin, C. McBride "Phase behaviour of attractive and repulsive ramp fluids: integral equation and computer simulation studies", Journal of Chemical Physics '''126''' 244510 (2007)]
 [[Category:models]]
 [[category:Polyamorphic systems]]