The effects of thermal treatment on the physical properties of Sr2FeMo1−xMxO6 perovskite with M = W, Ta and x ≤ 0.3

▶ The W and Ta doped Sr2FeMoO6 sintered longer time at 1300 °C are more ▶ Higher magnetizations, resistivities and magnetoresistivities are shown. ▶ The temperature and field dependences of magnetoresistivities are analysed. ▶ The spin polarization are higher in more homogeneous samples.