Editing Hemmer and Stell model
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{{Stub-general}} | {{Stub-general}} | ||
The '''Hemmer and Stell model''' [[intermolecular pair potential]], <math>\ | The '''Hemmer and Stell model''' [[intermolecular pair potential]], <math>\Phi(r)</math>, is given by (Ref. 1 Eq. 2, Ref. 2 Eq. 1-3): | ||
:<math>\ | :<math>\Phi(r) = \Phi(r)_{\mathrm {repulsive}} + \Phi(r)_{\mathrm{attractive}}</math> | ||
where a short range piece-wise potential | where a short range piece-wise potential | ||
:<math> | :<math> | ||
\ | \Phi(r)_{\mathrm {repulsive}} = \left\{ | ||
\begin{array}{ll} | \begin{array}{ll} | ||
\infty & {\rm if} \; r < d \\ | \infty & {\rm if} \; r < d \\ | ||
| Line 14: | Line 14: | ||
\end{array} \right. | \end{array} \right. | ||
</math> | </math> | ||
where | where <math>d</math> is the hard core radius, along with a long-range attractive potential; | ||
:<math>\ | :<math>\Phi(r)_{\mathrm{attractive}} = -a\gamma \exp (-\gamma r)</math> | ||
where <math>a</math> is a positive constant. | where <math>a</math> is a positive constant. | ||