Mixed (Ar)\(\mathsf{_{n}}\)(N\(\mathsf{_{2}}\))\(\mathsf{_{m}}\) van der Waals clusters created by pick-up technique

  • S. H. YangEmail author
  • R. Bisson
  • D. V. Daineka
  • M. Châtelet


A comparison of the adsorption efficiencies for Ar atoms on large (N2) m (m = 1320-10600) clusters and N2 molecules on large (Ar) n (n = 7900-17000) clusters has been investigated by the pick-up technique. Using mass spectroscopy, it has been shown that mixed (Ar) n (N2) m clusters can be created either by depositing Ar atoms from buffer gas on the surface of (N2) m clusters or by depositing N2 molecules from buffer gas on the surface of (Ar) n clusters. The composition of mixed (Ar) n (N2) m clusters has been determined as a function of cluster size and buffer gas pressure. The adsorption efficiency for Ar on (N2) m clusters is found to be significantly higher than that for N2 on (Ar) n clusters. This effect is attributed to the difference in Ar-Ar, N2-N2 and Ar-N2 binding energies.


Cluster Size Mixed Ratio Cluster Beam Average Cluster Size Mixed Cluster 
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Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  • S. H. Yang
    • 1
    • 2
    Email author
  • R. Bisson
    • 1
  • D. V. Daineka
    • 1
  • M. Châtelet
    • 1
  1. 1.Laboratoire de Physique des Interfaces et des Couches MincesCNRS, École PolytechniquePalaiseau CedexFrance
  2. 2.Department of PhysicsFudan UniversityShanghaiP.R. China

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