English

Nucleation, solvation and boiling of helium excimer clusters

Atomic and Molecular Clusters 2015-12-08 v1

Abstract

Helium excimers generated by a corona discharge were investigated in the gas and normal liquid phases of helium as a function of temperature and pressure between 3.8 and 5.0 K and 0.2 and 5.6 bar. Intense fluorescence in the visible region showed the rotationally resolved d3Σu+b3Πgd^3\Sigma_u^+ \rightarrow b^3\Pi_g transition of He2_2^*. With increasing pressure, the rotational lines merged into single features. The observed pressure dependence of linewidths, shapes and lineshifts established phases of coexistence and separation of excimer-helium mixtures, providing detailed insight into nucleation, solvation and boiling of He2_2^*-Hen_n clusters.

Keywords

Cite

@article{arxiv.1512.01864,
  title  = {Nucleation, solvation and boiling of helium excimer clusters},
  author = {Luis G. Mendoza Luna and Nagham M. Siltagh and Mark J. Watkins and Nelly Bonifaci and Frederic Aitken and Klaus von Haeften},
  journal= {arXiv preprint arXiv:1512.01864},
  year   = {2015}
}

Comments

5 pages, 5 figures