Calculation of the Influence of the Crystalline Electric Field on the Spin-Disorder Resistivity of Rare-Earth Alloys and Comparison with Results on CeAl2

Abstract

An expression is developed for the spin-disorder resistivity for metallic rare-earth systems; it takes into account the effect of the crystalline electric field. The expression, which is general, is made use of to treat the case of ${\mathrm{Ce}}^{+3\mathrm{}}$ in Ce${\mathrm{Al}}_2$; its resistivity-temperature behavior is adequately accounted for on the basis of a ${\Gamma }_7$ doublet ground state.