Chromium Atomic Deposits under the Disturbance of Straight Edge Diffraction

Abstract

The ideal Gaussian standing wave field model and the Gaussian standing wave field model under the condition of straight edge diffraction disturbance were established, and computer simulation and numerical analysis were done to the two kinds of models. It is concluded that the center position of Chromium atomic sedimentary grating in the straight edge diffraction disturbance standing wave will be away from the diffraction edge; near the given ideal deposit position, the PTVH(Peak to Valley Height) of Chromium atomic sedimentary grating in the ideal standing wave is higher than that in the straight edge diffraction disturbance standing wave, and the FWHM(Full Width at Half Maximum) is also narrower than in the ideal standing wave; for the exist of straight edge diffraction the size of the acceptable sedimentary pattern will be smaller, which has theoretical guidance on the practical operation.