POP scattering, acoustic deformation potential (ADP) scattering, ionized impurity (IMP) scattering, and piezoelectric (PIE) scattering. These contributions are integrated into the ZT equation via the electrical conductivity and electronic thermal conductivity. The piezoelectric constant was calculated to be negligible for these materials, and so piezoelectric scattering is not included in the analysis. The Seebeck coefficient is also calculated by AMSET, but is not influenced by scattering.