Magnetization Distribution in Single-Crystals of Iron-Silicon Alloys

The magnetization distribution in a single-crystalline silicon iron after quenching in the paramagnetic state and after annealing in the ferromagnetic state has been determined by Mossbauer spectroscopy. The specimens containing 5, 6, and 8 at % of silicon had cubic ({100}< 001 >) and Goss ({011}< 001 >) orientations of crystallographic axes. An original method of calculating the relative fractions of magnetization oriented along the magnetic easy axes, including in the plane of a single-crystal specimen or at an angle to this plane, was proposed. The parameters obtained as a result of discrete approximation of the Mossbauer spectra were used. It is shown that after quenching in the paramagnetic state, the magnetization is oriented approximately equiprobably along the three < 100 > axes, while after ferromagnetic annealing it redistributes along the < 100 > directions lying in the specimen plane.