On the Temperature Dependences of the Magnetic Electrical Resistivities in Pr and Nd

抄録

Temperature dependences of the electrical resistivities due to the s–f exchange interaction and the quadrupole scattering are calculated for Pr and Nd of the hcp, fcc and the La-type crystal structures. The magnetic states of 4f electrons are determined from other experimental results. In general we get reasonable agreement between the calculation and the experiment both in the absolute values and in the temperature dependences. The sharp discrepancy on the temperature dependences of the resistivities for the two different samples of Pr is attributed on the basis of the present calculation to the possibility that the old sample is of hcp rich and the new sample fcc rich.