Hyperfine Interactions

, Volume 89, Issue 1, pp 253–262 | Cite as

Electron-cluster interactions

  • Adi A. Scheidemann
  • Vitaly V. Kresin
  • Walter D. Knight
Invited Papers Session 8. Clusters and Small Molecules

Abstract

Beam depletion spectroscopy has been used to measure absolute total inelastic electron-sodium cluster collision cross sections in the energy range fromE≈0.1 toE≈6 eV. The investigation focused on the closed shell clusters Na8, Na20, and Na40. The measured cross sections show an increase for the lowest collision energies where electron attachment is the primary scattering channel. The electron attachment cross section can be understood in terms of Langevin scattering, connecting this measurement with the polarizability of the cluster. For energies above the dissociation energy the measured electron-cluster cross section is energy independent, thus defining an electron-cluster interaction range. This interaction range increases with the cluster size.

Keywords

Cluster Size Collision Energy Dissociation Energy Measured Cross Section Interaction Range 

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Copyright information

© J.C. Baltzer AG, Science Publishers 1994

Authors and Affiliations

  • Adi A. Scheidemann
    • 1
  • Vitaly V. Kresin
    • 2
  • Walter D. Knight
    • 3
  1. 1.Department of ChemistryUniversity of WashingtonSeattleUSA
  2. 2.Lawrence Livermore National LaboratoryUniversity of CaliforniaLivermoreUSA
  3. 3.Department of PhysicsUniversity of CaliforniaBerkeleyUSA

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