Volume 82, Number 2, April 2008
Article Number 23001
Number of page(s) 6
Section Atomic, Molecular and Optical Physics
Published online 26 March 2008
EPL, 82 (2008) 23001
DOI: 10.1209/0295-5075/82/23001

Nanoscopic phase changes in doped 4He droplets

E. Coccia, E. Bodo and F. A. Gianturco

Department of Chemistry and CNISM, University of Rome "La Sapienza" - Italy, EU

received 20 December 2007; accepted in final form 22 February 2008; published April 2008
published online 26 March 2008

A novel analysis of final walkers distributions from quantum Diffusion Monte Carlo calculations is presented for the smaller 4He clusters containing Li+, Na+ and K+. The results are shown to provide a clear pictorial view of electrostriction effects leading to the formation of solid-like snowballs that can be surrounded by a liquid-like environment of additional solvent atoms. Transitions from one nanophase to the other are clearly shown by the stochastic results as a function of cluster size and of the chemical nature of the specific dopant ion.

36.40.Qv - Stability and fragmentation of clusters.
36.40.Ei - Phase transitions in clusters.
36.40.Wa - Charged clusters.

© EPLA 2008