Dynamical effects in the interaction of ion beams with solids

Ryan Hatcher, Matthew Beck, Alan Tackett, Sokrates T. Pantelides

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Calculations of the stopping power (SP) of ion beams in solids have been based on a homogeneous electron gas scattering off a static atom and entail at least one free parameter. Here we report dynamical simulations of ions channeled in silicon. Time-dependent density-functional theory (TDDFT) is used. The calculated SPs are in excellent agreement with the observed oscillatory dependence on atomic number. TDDFT calculations for a homogeneous electron gas demonstrate that both dynamical response and nonuniformities in the electron density are essential to reproduce the data without free parameters.

Original languageEnglish
Article number103201
JournalPhysical Review Letters
Issue number10
StatePublished - Mar 13 2008

ASJC Scopus subject areas

  • General Physics and Astronomy


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