Charge exchange in low-energyHe+ion scattering from solid surfaces

X-ray resonant exchange scattering from 3d transition metal surfaces

The decay of the elastic X-ray intensity peak versus perpendicular transferred momentum is theoretically studied at energies close to the LII edge, for single crystal Fe surfaces and thin Fe films. For the single crystal surface, large intensity changes are observed upon reversal of the direction of the magnetisation. For thin Fe films, which are known to exhibit perpendicular magnetisation, an...

Atomic helium scattering and diffraction from solid surfaces

It is shown that whether or not diffractive scattering is observed from solid surfaces depends not only on the elastic scattering cross section, ie the normalized Debye-Waller factor, as has been recently suggested by J L Beeby but also on the surface structure or local surface potential of the particular solid.

π-N charge exchange and π +-π 0 scattering at low energies ∗

Charge-transfer reactions in atom scattering from ionic surfaces: a time-dependent wavepacket approach.

A diabetic description of charge transfer between atoms and ionic surfaces is presented, specifically examining the F/LiF(100) and F/KI(100) systems for which experiment shows ion formation to be very efficient. Potential energy surfaces describing the energetics for these systems have been generated with a semi-empirical scheme. At the site of charge exchange, there is a curve-crossing between...

Scattering of metallic beams from insulator solid-surfaces : Cd/NaCl (100)

2014 Scattering of a cadmium beam from (100) NaCl surface has been studied in ultra-high vacuum. The existence of the quasi-specular lobe observed in the early studies on scattering of neutral atoms from solid surfaces, around 1930 by Ellet et al., is confirmed. The dependence of the angular position of the quasi-specular lobe as a function of either the substrate temperature or the beam temper...