Piezoresistance inn-Type CdTe

The elastoresistance coefficients for $n-\mathrm{C}\mathrm{d}\mathrm{T}\mathrm{e}$ were determined at 300° and 195°K. The values of the coefficients are small and are comparable to those in $n-\mathrm{I}\mathrm{n}\mathrm{S}\mathrm{b}$ and $n-\mathrm{G}\mathrm{a}\mathrm{A}\mathrm{s}$. This result is consistent with the hypothesis that the electrical conduction in $n-\mathrm{C}\mathrm{d}\mathrm{T}\mathrm{e}$ is due to the electrons in the $k=0\mathrm{}$ band characterized by spherical constant energy surface. The data on the resistance and Hall coefficient as a function of hydrostatic pressure (up to 1.2×${10}^{10}$ dyn/${\mathrm{cm}}^2$) indicate additional complications in the conduction band. Our results are inconclusive about this additional mechanism, which is responsible for sharply decreasing the electrical conductivity in $n-\mathrm{C}\mathrm{d}\mathrm{T}\mathrm{e}$ at higher pressures.