Ferromagnetic Double Perovskite Semiconductors with Tunable Properties

The authors successfully dope the magnetically silent double perovskite semiconductor Sr(2)GaSbO(6) to induce ferromagnetism and tune its bandgap, with Ga(3+) partially substituted by the magnetic trivalent cation Mn(3+), in a rigid cation ordering with Sb(5+). The new ferromagnetic semiconducting Sr(2)Ga(1−) (x) Mn (x) SbO(6) double perovskite, which crystallizes in tetragonal symmetry (space group I4/m) and has tunable ferromagnetic ordering temperature and bandgap, suggests that magnetic ion doping of double perovskites is a productive avenue toward obtaining materials for application in next‐generation oxide‐based spintronic devices.