Electron diffraction study of vaporized-metal clusters produced by a nozzle source

The electron diffraction measurement of Sb and Bi vapor beams ejected by adiabatic expansion from a nozzle source showed a halo pattern, indicating that clusters included in the beams were in liquid state. By the introduction of He gas, the electron diffraction pattern became strong. The RDF analysis showed the higher order arrangement of the cluster, and the cluster size was estimated to be larger than a few tens of atoms.