Figure 77
Fig. 77: Reflectivity of the Ga/diamond(111) interface as a function
of perpendicular momentum transfer Q
(a). The solid curve is the best-fit reflectivity
curve, obtained by Fourier transform of the electron density profile of
(b). The dashed curve is a model calculation
for a non-oscillatory density profile. The inset shows a schematic of the
scattering geometry. Figure 77(b) shows the
best-fit model of the oscillatory in-plane averaged electron density profile
as a function of the distance z along the interface normal. In (c),
a structural model consistent with the above density profile is shown. Carbon
atoms are illustrated by small circles and Ga atoms by larger ones; Ga2 dimers are represented by two atoms connected by
a line.
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