Magnetic properties of (Ti1-xVx2O3 powders

The magnetic susceptibility of (Ti_1-xV_x2O₃ powders with 0 ? x ? 0.12 has been measured over the temperature range 4.2–300 K. The data show a Curie-Weiss behaviour between 20 and 150 K. As x is increased, the effective magnetic moment per V atom first decreases from 3.8 to 1.8 μ_B shows a steep increase for x = 0.02 and reaches a limit of 1.8 μ_B. These results are discussed in connection with a theoretical model proposed by Van Zandt, involving a narrow V impurity band.