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Abstract

The composition and structure of alloy surfaces can differ from the corresponding bulk properties due to segregation and relaxation effects. We studied the (100) surface of the ordered alloy CuAu and amorphous Ni and Al by low-energy Ne+ and Na+ ion scattering. The interpretation of the experimental results is supported by numerical simulation using the MARLOWE code. In the CuAu system a certain geometry was found to be very sensitive to Au presence in the 2nd layer. Comparison with MARLOWE results also allows the study of variations in the ion yields arising from neutralization effects. By trajectory analysis ion survival probabilties are estimated for Ni and Al.

Additional information

Authors: BEIKER R, Max-Plank Institut f³r Plamaphysik, EURATOM Association, Garching bei M³nchen (DE);TAGLAUER E, Max-Plank Institut f³r Plamaphysik, EURATOM Association, Garching bei M³nchen (DE)
Bibliographic Reference: Article: Nuclear Instruments and Methods in Physics Research 161-163 (2000) pp. 390-395
Availability: Nuclear Instruments and Methods in Physics Research (Journal)
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