Cp. Kau et al., X-RAY-DIFFRACTION STUDIES OF MISCUT CRYSTAL-SURFACES AND OVERLAYERS -A DYNAMICAL DIFFRACTION APPROACH, Materials chemistry and physics, 41(2), 1995, pp. 128-133
X-ray surface diffraction data from a miscut Fe3Al crystal and the non
-specular crystal-truncation rod of a monolayer Au on a Ge(111) surfac
e are interpreted using the dynamical theory in relation to the struct
ures of surface/interface of thin films and bulk crystals. It is found
that in the miscut crystal the X-ray penetration depth depends on the
crystal miscut angle due to the boundary effect on the excitation of
mode of wave propagation. For the Au/Ge(111) case, the diffracted inte
nsity must be summed up in a kinematical fashion to take account of th
e scattering from the deposited overlayers. This dynamical calculation
scheme provides an absolute scale for intensity versus momentum trans
fer which is useful for surface-and thin film analysis.