The Pressure Effect of the Hall Coefficient of Indium and Indium Rich Alloys

Abstract

The variations of the Hall coefficient R_H of indium and indium rich alloys (In–Tl and In–Pb) have been measured in the range of 1∼8000 atm at room temperature. The R_H or pure In increases with the rate of 3.4×10⁻¹³ (m³/cou.)/katm, and changes its sign at about 8000 atm. For the sake of comparison, the variation of R_H of Al and Pb have been also measured.
The observed results are discussed in terms of two conceivable origins: one is the anisotropic electron-phonon scattering and the other is the effect of the lattice potential.