Abstract
We have measured surface channeling and resonant coherent excitation of N 6+ ions scattered off a Pt(110)(1 × 2) surface at energies of 23.0 MeV and 21.8 MeV. In order to achieve surface channeling at those energies small grazing angles of incidence below 0.10° must be achieved. When scattered at 21.8 MeV along the [110] surface semichannels resonant coherent excitation (RCE) is observed. The effect is studied as a function of the azimuthal angle and the angle of incidence. The experimental findings agree with earlier bulk channeling experiments. In comparison with theoretical predictions satisfactory agreement is found.
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