Hall effect in high-purity and p-doped germanium crystals

Experimental and theoretical investigations of the Hall effect were carried out in high‐purity (10¹⁰‐cm⁻³ carrier concentration) germanium crystals. Optical phonon scattering, which was not included in the previous work on the calculation of the Hall coefficient factor $\mathrm{\theta ̂}$ , is included in the present calculation. Extensive numerical calculations were performed for $\mathrm{\theta ̂}$ vs 1/T for both the spherical‐band model and the anisotropic model of Beer and Willardson. Measurements and calculations of the Hall coefficient vs 1/T are in excellent agreement.