Transport and magnetic properties of Fe2VAl single crystal

We prepared single crystals of Fe1.95V1.05Al, Fe1.98V1.02Al, Fe2VAl, Fe2.02V0.98Al and Fe2.05V0.95Al by the conventional Czochralski pulling method in a tetra-arc furnace. The magnetization along the [100] direction was measured using a SQUID magnetometer. The Fe2VAl sample showed the smallest value of magnetization among the samples. The magnetization of the single crystalline sample was smaller than that of the polycrystalline sample with the same composition. These results for the single crystal suggest that the Fe2VAl has the lower concentration of magnetic antisite defects. The Seebeck coefficients were measured in the temperature range from 10 to 300K. Fe2VAl showed the largest absolute value of the Seebeck coefficient S among the present samples, about .