title: Atomic collisions in suprafluid helium-nanodroplets: timescales for metal-cluster formation derived from He-density functional theory.
abstract: Collision times for the coinage metal atoms Cu, Ag and Au in He-droplets are derived from helium density functional theory and molecular dynamics simulations. The strength of the attractive interaction between the metal atoms turns out to be less important than the mass of the propagating metal atoms. Even for small droplets consisting of a few thousand helium atoms, the collision times are shortest for Cu, followed by Ag and Au, despite the higher binding energy of Au2 compared to Cu2.
authors: Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, A-8010 Graz, Austria. andreas.w.hauser@gmail.com wolfgang.ernst@tugraz.at.
authors: Andreas W
authors: AW
authors: Hauser
authors: Alexander
authors: A
authors: Volk
authors: Philipp
authors: P
authors: Thaler
authors: Wolfgang E
authors: WE
authors: Ernst