Characterization of magnetic property of double-perovskite (Sr2−xGdx)FeMoO6

Combined effects of hole doping and off-stoichiometry on the structures, transport, and magnetic properties of Sr(2−y)NayFe(1−x)Mo(1+x)O6 (x = 0/5x = y; y = 0, 0.05, 0.1, 0.15, 0.2, and 0.3)

“…9,11,14,15 The carrier density at the Fermi level has been proposed to have a close correlation with the T C of the double perovskite. [15][16][17][18][19][20][21] Actually, the ferromagnetic T C of A 2 FeMoO 6 (A: Ca/Ba/Sr) can indeed be signicantly enhanced by substituting the divalent A 2+ ions with the trivalent ions (such as La 3+ , Nd 3+ , Sm 3+ etc.). 15,17,19,[22][23][24][25][26][27] A substantial increase in the ferromagnetic T C is because of the increase in the carrier density caused by electron injection into the conduction band.…”