Temperature Dependences of Electrical Resistivity and Magnetic Susceptibility for V-Cr, Nb-Mo and Ta-W Alloys at High Temperature

Electronic densities of states for V–Cr, Nb–Mo and Ta–W alloys are calculated in the coherent potential approximation. From these calculated results, temperature dependences of the electrical resistivity R and the paramagnetic spin susceptibility χ at high temperature are estimated. The calculated results are compared with experiments and a qualitative agreement is obtained. It is shown that the concentration variations of the temperature dependences in R / T and χ are strongly dependent on the shape of the density of states near the Fermi level.