Dipole

[classi] [classj] dipole [sigma_0] [mu]

$\displaystyle U_{\mathrm{dipole}} = \frac{\mu^2 \sigma_0^3}{r^3} \left[ \hat{\m...
...t(\hat{\mu}_i \cdot \hat{r}\right)\left(\hat{\mu}_j \cdot \hat{r}\right)\right]$ (7)

where $ \mu$ is the dipole strength, $ \hat{\mu}_i$ is the dipole orientation of the $ i$-th site, $ r$ is the distance between sites $ i$ and $ j$, and $ \hat{r}$ is the unit vector pointing between the sites.



David Wales 2017-09-21