Ferromagnetic Double Perovskite Semiconductors with Tunable Properties

Abstract

The authors successfully dope the magnetically silent double perovskite semiconductor Sr2GaSbO6 to induce ferromagnetism and tune its bandgap, with Ga3+ partially substituted by the magnetic trivalent cation Mn3+, in a rigid cation ordering with Sb5+. The new ferromagnetic semiconducting Sr2Ga1−xMnxSbO6 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.

Realizing new 2D spintronic materials from the non-magnetic 1T-PdO2 monolayer through vacancy defects and doping

“…In this regard, half-metallic and diluted magnetic semiconductor materials hold promise for spintronic applications thanks to their 100% spin polarization. 31,32 For many years, different bulk systems, such as Heusler compounds, 33,34 diluted magnetic semiconductors, 35,36 metal oxides, 37,38 and double perovskites, 39,40 have been investigated. Recently, researchers have switched attention to explore 2D materials for spintronic applications.…”

Crystallography at non-ambient conditions and physical properties of the synthesized double perovskites, Sr2(Co1−xFex)TeO6

“…[11][12][13] The ability of this structure to incorporate almost all the elements of the periodic table, except for rare gas elements, beryllium, and phosphorus, has given these materials a variety of technologically important properties, such as the giant magnetoresistance found for Sr 2 CrWO 6 . 14,15 Double perovskites show dielectric, [16][17][18] piezoelectric, [19][20][21] ferroelectric, [22][23][24] or superconducting [25][26][27] behavior. Therefore, these properties allow these materials to be used in many technological applications such as lasers, LEDs, electrode materials for supercapacitors, and solar cells, which is the most widespread application of these materials.…”

Hidden Hydroxides in KOH-Grown BaNiO3 Crystals: A Potential Link to Their Catalytic Behavior

“…Complex metal oxides exhibit enriched structural chemistry and sometimes unexpected magnetic and electronic properties, ranging from magnetism, superconductivity, and magnetoresistance to ionic conductivity and unusual catalytic behavior. − The ABO 3 perovskites, as one of the largest oxide structural families, serve an important role in this context. In standard perovskites, which are based on corner-shared BO 6 octahedra, the metal centers are relatively far from each other.…”