Low-temperature resistivity and magnetoresistivity of cerium compounds

The low-temperature resistivity and magnetoresistivity of cerium compounds are computed with a model describing both the crystalline field and Kondo effects, thus extending to low temperatures a previous calculation [Phys. Rev. B 5, 4541 (1972)]. The theoretical results can account for the resistivity data of cerium compounds, either those which order magnetically (such as ${\mathrm{CeAl}}_2$ or ${\mathrm{CeB}}_6$) or those which become nonmagnetic (such as ${\mathrm{CeAl}}_3$ or ${\mathrm{CeCu}}_2$ ${\mathrm{Si}}_2$) at low temperatures.