The magnetic properties and structure of $SmFe_{11-x}Co_xTi$ compounds

The crystal structure, phase composition, and magnetic properties of $SmFe_{11-x}Co_xTi$ compounds (x = 0, 1, 2, 3, 5) were studied. The temperature dependence of magnutization, the Curie temperature $Т_с$ and the saturation magnetization were determined for single crystals prepared from ingots of $SmFe_{11-x}Co_xTi$ alloys. Uniaxial magnetic anisotropy constants were estimated by the torque method. It was found that $SmFe_{11-x}Co_xTi$ compounds have high magnetic energy, saturation magnetization and magnetic anisotropy. It was also found that the Curie temperature grows drastically as cobalt is substituted for iron and reaches the level of $Т_с = 960$ К for $SmFe_6Co_5Ti$, which provides increased thermal stability of these alloys.