The Einstein solid is made up of single-frequency quantum harmonic oscillators, ϵ = �?ω = h ν displaystyle epsilon =hbar omega =hnu It has been recognized that Raman scattering spectroscopy is really a powerful tool to characterize SiC crystals non-destructively. We review recent significant developments in using Raman scattering… MDPI https://x.com/hongyuxin20/status/1817068901551010097