The structure and energetics of He-3 and He-4 nanodroplets doped with alkaline earth atoms (Articolo in rivista)

Type
Label
  • The structure and energetics of He-3 and He-4 nanodroplets doped with alkaline earth atoms (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Hernando, A; Mayol, R; Pi, M; Barranco, M; Ancilotto, F; Bunermann, O; Stienkemeier, F (2007)
    The structure and energetics of He-3 and He-4 nanodroplets doped with alkaline earth atoms
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Hernando, A; Mayol, R; Pi, M; Barranco, M; Ancilotto, F; Bunermann, O; Stienkemeier, F (literal)
Pagina inizio
  • 7303 (literal)
Pagina fine
  • 7308 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 111 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain; Univ Barcelona, IN2UB, E-08028 Barcelona, Spain; Univ Padua, INFM, DEMOCRITOS, I-35131 Padua, Italy; Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy; Univ Freiburg, Inst Phys, D-76104 Freiburg, Germany (literal)
Titolo
  • The structure and energetics of He-3 and He-4 nanodroplets doped with alkaline earth atoms (literal)
Abstract
  • We present systematic results, based on density functional calculations, for the structure and energetics of He-3 and He-4 nanodroplets doped with alkaline earth atoms. We predict that alkaline earth atoms from Mg to Ba go to the center of He-3 drops, whereas Ca, Sr, and Ba reside in a deep dimple at the surface of He-4 drops, and Mg is at their center. For Ca and Sr, the structure of the dimples is shown to be very sensitive to the He-alkaline earth pair potentials used in the calculations. The 5s5p <- 5s(2) transition of strontium atoms attached to helium nanodroplets of either isotope has been probed in absorption experiments. The spectra show that strontium is solvated inside He-3 nanodroplets, supporting the calculations. In the light of our findings, we emphasize the relevance of the heavier alkaline earth atoms for analyzing mixed He-3-He-4 nanodroplets, and in particular, we suggest their use to experimentally probe the He-3-He-4 interface. (literal)
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