This study examines the impact of silicon ion bombardment on the phononic properties of Si/Si+Ge and SiO2/SiO2+Ge superlattices to enhance neutron superreflector technology. Using precise ion implantation and Fourier Transform Infrared Spectroscopy, we observed alterations in transverse and longitudinal optical phonon modes. The Si/Si+Ge system showed significant redshifts and intensity changes, while SiO2/SiO2+Ge exhibited increased lattice disorder and peak broadening. These findings underscore ion bombardment's potential to optimize phononic landscapes for improved nuclear reactor safety and efficiency through advanced phonon engineering.
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Varner et al. (2024) studied this question.
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