Abstract
Iron and titanium multilayers for which the total thickness was in the range 70–150 nm and the average composition was Fe-50at.% Ti have been ion beam mixed at room temperature with 500 keV Xe + ions. The samples were characterized before and after ion beam mixing with doses from 1×10 15 to 3×10 16 Xe + ions cm −2 by three complementary techniques: Rutherford backscattering spectroscopy of 2 MeV α particles, conversion electron Mössbauer spectroscopy and transmission electron microscopy. A dose of at least 1×10 16 Xe + ions cm −2 is necessary for a significant ion beam mixing effect to be observed and for a dose up to 3×10 16 Xe + ions cm −2 the formation of the compound FeTi occurs. This compound is observed in the form of microcrystallites in spite of the presence of a large amount of impurities such as carbon and oxygen which are known to be easy glass formers.
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