Ground-state path integral Monte Carlo simulations of positive ions in $^4$He clusters: bubbles or snowballs?
| dc.creator | Paolini, Stefano | |
| dc.creator | Ancilotto, Francesco | |
| dc.creator | Toigo, Flavio | |
| dc.date | 2007-01-10 | |
| dc.date.accessioned | 2026-07-07T07:39:37Z | |
| dc.date.available | 2026-07-07T07:39:37Z | |
| dc.description | The local order around alkali (Li$^+$ and Na$^+$) and alkaline-eath (Be$^+$, Mg$^+$ and Ca$^+$) ions in $^4$He clusters has been studied using ground-state path integral Monte Carlo calculations. We apply a criterion based on multipole dynamical correlations to discriminate between solid-like versus liquid-like behavior of the $^4$He shells coating the ions. As it was earlier suggested by experimental measurements in bulk $^4$He, our findings indicate that Be$^+$ produces a solid-like ("snowball") structure, similarly to alkali ions and in contrast to the more liquid-like $^4$He structure embedding heavier alkaline-earth ions. | |
| dc.description | 9 pages, 12 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0701215 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0701215 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/121515 | |
| dc.subject | Other Condensed Matter | |
| dc.title | Ground-state path integral Monte Carlo simulations of positive ions in $^4$He clusters: bubbles or snowballs? | |
| dc.type | text |