Abstract
The interaction of fast ions with a solid surface is studied by the specular reflection of MeV H+ and He+ ions from clean surfaces of SnTe and PbSe single crystals. Oscillatory structure is observed in the energy spectra of reflected He+. This indicates that a part of the incident ions penetrate inside the crystal and travel for a few wavelengths of oscillatory motion in the (001) planar channel before reappearing at the surface. The position-dependent stop** power near the surface is derived from the observed energy loss of specularly-reflected ions. A large difference is observed in the charge-state distribution between the specular reflection and the transmission through a self-supporting foil. This is attributed to the fact that the specularly-reflected ions interact exclusively with the valence electrons. The technique of specular reflection of fast ions is applied to investigate the epitaxial growth of PbSe on a SnTe (001) surface. It is shown that the specular reflection is very sensitive to the surface distortion which is introduced in the first stage of the epitaxial growth.
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© 1991 Plenum Press, New York
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Kimura, K., Mannami, H. (1991). Scattering of Fast Ions and Energy Loss on Surfaces. In: Gras-Marti, A., Urbassek, H.M., Arista, N.R., Flores, F. (eds) Interaction of Charged Particles with Solids and Surfaces. Nato ASI Series, vol 271. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-8026-9_13
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DOI: https://doi.org/10.1007/978-1-4684-8026-9_13
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