Stress dependence of the magnetic properties of amorphous Co-Fe-Si-B alloys

For the amorphous alloys Co_75−xFe_xSi₁₅B₁₀ (x = 0, 2, 4, 4.6) and Co₇₅Si₅B₂₀, we have studied the stress depe ndence of the coercive field, the initial susceptibility, the effective anisotropy, and the reduced remanence. The experimental results are in good agreement with a model due to Vázquez, Fernengel and Kronmüller. From our measurements, we obtain the magnetostriction, as well as information about quenched-in stresses and anisotropy mechanisms in these materials.