Analysis of reflection high energy electron diffraction azimuthal plots

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Abstract
Reflection high energy electron diffraction data collected in the form of an azimuthal plot are analyzed theoretically for the first time. Experimental results for Si(111) at a glancing angle satisfying a Bragg condition are taken from the literature. Calculations are carried out within a multiple scattering approach. Excellent agreement between experimental and theoretical results is achieved. A simple qualitative explanation of the shape of the azimuthal plot analyzed is also presented.