Electrical measurement of the spin Hall effect isotropy in ferromagnets with strong spin-orbit interactions

The spin-dependent transport properties of paramagnetic metals are roughly invariant under rotation. By contrast, in ferromagnetic materials, the magnetization breaks rotational symmetry, and, thus, spin Hall effect is expected to become anisotropic. Here, using a specific design lateral valves, we measure electrically anisotropy NiCu and NiPd. We show that vector does not lead sizable charge interconversion parameters materials with spin-orbit coupling comparable exchange interaction.