Static Dielectric Constant of SiC

Abstract

Using the Lyddane-Sachs-Teller relation, published data, and a simple analysis, we find the static dielectric constant of cubic SiC to be ${\epsilon }_{\mathrm{s}}=9.72\mathrm{}$. The same method yields ${\epsilon }_{\mathrm{s}}\left(\perp \right)=9.66\mathrm{}$ and ${\epsilon }_s\left(\parallel \right)=10.03\mathrm{}$ for $6H$ SiC.