Strong anisotropic electron-impurity scattering in dilute AlLi alloys.

Abstract

The Hall coefficient and the transverse magnetoresistance of dilute AlLi alloys at 4.2 K is reported. A large positive low-field Hall coefficient ${\mathit{R}}_{\mathit{H}}^{0}$ is found, in comparison to the free-electron Hall coefficient-value ${\mathit{R}}_{\mathrm{FE}}$ of aluminum. The cause of the large ${\mathit{R}}_{\mathit{H}}^{0}$ can be attributed to the strong anisotropic scattering of the electrons in the third zone of Fermi surface on the substitutional Li impurities.