Temperature dependence of the electrical resistivity of Y3Co11B4 and Gd3Co11B4 compounds

The temperature dependence of the electrical resistivity rho of R(3)Co(11)B(4) (R = Y and Gd) in the temperature range from 4.2 to 370 K is presented. These compounds crystallize in the Ce3Co11B4-type structure. The unit cell of the structure contains 18 atoms. The ran earth atoms are distributed in two different crystallographic sites, the Co atoms in three different positions, and boron is located in one type of site. Ln the low-temperature region rho is proportional to T-2. This quadratic dependence is caused by electron-spin wave scattering. The experimental results are compared with transport properties of other rare earth-transition metal compounds.