Structure of evaporated pure amorphous silicon: Neutron-diffraction and reverse Monte Carlo investigations

Abstract

A neutron-diffraction measurement in the 0--23 A${\mathrm{\r{}}}^{\mathrm{\ensuremath{-}}1}$ inverse space interval was performed on pure amorphous Si. With the structure factor obtained experimentally three-dimensional models were constructed by reverse Monte Carlo simulation for the determination of the atomic structure of a-Si. The radial distribution function was calculated directly from the large-scale models and was derived traditionally from these wide range spectra, as well.