The hopping hall mobility — A percolation approach

We present an averaging procedure for the calculation of the Hall mobility for spatial and energetical disordered hopping systems in the framework of percolation theory. For a constant density of states function the temperature dependence of the Hall mobility follows a $\text{T}{}^{\mathrm{<mtext>?</mtext><mtext>1</mtext><mtext>4</mtext>}}$- law with a slope which is by a factor of about $\text{8}\text{3}$ smaller than that of the conductivity.