Effective Charge of Helium Ions in Solids

  • M. Peñalba
  • A. Arnau
  • P. M. Echenique
Part of the Nato ASI Series book series (NSSB, volume 271)


The effective charge of Helium ions in different materials has been calculated. A charge-state approach to stopping power has been used. In a first step linear theory and interaction with the valence electrons have been taken into account. In order to improve on these results we introduce the interaction with the lattice ion cores and a self-consistent non-linear calculation of the stopping power for the charge state relevant at low velocity. Comparison with experimental data is presented.


Charge State Effective Charge Equilibrium Fraction Valence Band State Loss Cross Section 


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Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • M. Peñalba
    • 1
  • A. Arnau
    • 1
  • P. M. Echenique
    • 1
  1. 1.Departamento de Física de Materiales Facultad de QuímicaUniversidad del País VascoSan SebastiánSpain

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