Ferromagnetic Double Perovskite Semiconductors with Tunable Properties
Lun Jin, Danrui Ni, Xin Gui, Daniel B. Straus, Qiang Zhang, R. J. Cava
Abstract
Abstract 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 I 4/ 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.
Topics & Concepts
FerromagnetismSpintronicsTetragonal crystal systemMaterials sciencePerovskite (structure)Band gapDopingCondensed matter physicsMagnetic semiconductorSemiconductorOxideCrystal structureCrystallographyOptoelectronicsChemistryPhysicsMetallurgyPerovskite Materials and ApplicationsMagnetic and transport properties of perovskites and related materialsAdvanced Condensed Matter Physics