Compositional dependence of structural, magnetic and spin-phonon coupling properties in Fe2−xGaxO3 (x = 0.6–1.2) system with orthorhombic symmetry

Structural phase stabilization via Ba site doping with bivalent Sr, Ca and Zn ions and Fe site doping with trivalent Cr and Ga ions in the BaFe12O19 hexaferrite and its magnetic modification

“…On the other hand, mechanical alloying alone without external heat treatment is sufficient to obtain single-phase material, or the minimum temperature required for structural phase stabilization can be reduced in comparison to the solid state sintering route. 24 Mechanical alloying is a solid-state technique that involves repeated cold welding, fracturing, and rewelding of powdered particles in a high-energy ball mill. In this process, the mechanical energy is used for the chemical reaction, where a small amount of milling powder is trapped between the balls.…”