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Marcel Mudrich

Stability of two-component alkali clusters formed on helium nanodroplets

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  • G. Droppelmann, Universität Bielefeld
  • ,
  • M. Mudrich
  • C. P. Schulz, Max Born Institute, 12489 Berlin
  • ,
  • F. Stienkemeier, Albert-Ludwigs-Universität Freiburg

The stability of two-component clusters consisting of light (Na or K) and heavy (Rb or Cs) alkali atoms formed on helium nanodroplets is studied by femtosecond laser ionization in combination with mass spectrometry. Characteristic stability patterns reflecting electron shell-closures are observed in dependence of the total number of atoms contained in the mixed clusters. Faster decay of the stability of mixed clusters compared to the pure light ones as a function of size indicates a destabilizing effect of heavy alkali atoms on light alkali clusters, presumably due to second order spin-orbit interaction.

TidsskriftThe European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics
Sider (fra-til)67-70
Antal sider4
StatusUdgivet - apr. 2009
Eksternt udgivetJa

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