Half-metallic magnetism of Co2CrX (X=As, Sb) Heusler compounds: An ab initio study

Half metallicity through wide range of lattice constants in Heusler alloys Co2MnGa1−xGex: First‐principles calculations

“…The HM ferromagnets are widely used as ferromagnetic (FM) electrodes of magnetic tunnel junctions for tunneling magnetoresistance (TMR) or of spin valves for giant magnetoresistance 2–4. Recently, many Co‐based Heusler alloys Co 2 YZ (transition metal Y and main group element Z) with L2 1 ‐type structure have been predicted to be HM ferromagnets and exhibiting a high spin polarization at the Fermi level by first‐principles methods 5–7. Many experiments indicated that magnetic tunnel junctions fabricated using Co‐based Heusler alloys, such as Co 2 MnAl 1− x Si x 8, Co 2 Cr 1− x Fe x Al 9, 10, and Co 2 MnAl 1− x Si x 11, show a larger tunnel magnetoresistance even at room temperature.…”