Ground-state path integral Monte Carlo simulations of positive ions in He-4 clusters: Bubbles or snowballs? (Articolo in rivista)

Type
Label
  • Ground-state path integral Monte Carlo simulations of positive ions in He-4 clusters: Bubbles or snowballs? (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Paolini, S; Ancilotto, F; Toigo, F (2007)
    Ground-state path integral Monte Carlo simulations of positive ions in He-4 clusters: Bubbles or snowballs?
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Paolini, S; Ancilotto, F; Toigo, F (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 126 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy; CNR, INFM, Democritos Natl Simulat Ctr, Trieste, Italy (literal)
Titolo
  • Ground-state path integral Monte Carlo simulations of positive ions in He-4 clusters: Bubbles or snowballs? (literal)
Abstract
  • The local order around alkali (Li+ and Na+) and alkaline-earth (Be+, Mg+, and Ca+) ions in He-4 clusters has been studied using ground-state path integral Monte Carlo calculations. The authors apply a criterion based on multipole dynamical correlations to discriminate between solidlike and liquidlike behaviors of the He-4 shells coating the ions. As it was earlier suggested by experimental measurements in bulk He-4, their findings indicate that Be+ produces a solidlike ('snowball') structure, similar to alkali ions and in contrast to the more liquidlike He-4 structure embedding heavier alkaline-earth ions. (c) 2007 American Institute of Physics. (literal)
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