Hall Factor in p‐Ge with Anisotropic Energy Spectrum

Abstract

By solving the kinetic Boltzmann equation, a quasi‐momentum distribution function for charge carriers in p‐Ge is found taking into account the non‐sphericity of the constant energy surfaces of light and heavy hole bands. Account is also taken of the anisotropic carrier scattering by ionized impurities and acoustic lattice vibrations. The magnetic field and temperature dependences of the Hall‐factor rH are calculated for fields 0 < B ≦ 5 T and temperatures 77 K ≦ T ≦ = 260 K. The results calculated are compared with measured τH values obtained on oriented p‐Ge samples with free carrier concentration p ≈ 1.7 × 1014cm−3.