Temperature dependence of the Hall effect in monocrystalline magnesium

Abstract

The Hall resistivity ρ21(B,T) observed when [Formula: see text] and [Formula: see text] has been measured in monocrystals of Mg in the temperature range 1.7–300 K and in an applied flux up to 2 T. A quantitative interpretation when [Formula: see text] is made using a path integral calculation of the magnetoresistive tensor produced by representative orbits on a model Fermi surface. The results explain the origins of the principal features in the behaviour of ρ21(B,T), and show the importance of magnetic breakdown in cyclotron motion in the basal plane.