The resistivity of ${\mathrm{PrAl}}_2$, which is dominated by quadrupole scattering, has been previously calculated. To improve the fit to the data, we have calculated the contribution to the resistivity from the spin fluctuations above $T_c$. Although the new calculation does not take into account the crystalline electric field, it nevertheless produces a much better fit to the resistivity data above the ordering temperature. In addition, the inclusion of the effect of spin fluctuations causes the dominant quadrupole scattering term to be a smaller portion of the total resistivity.

• Received 23 April 1984

DOI:https://doi.org/10.1103/PhysRevB.30.1554