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We theoretically study the spin Hall effect in a simple tight-binding modelof stacked-kagome Weyl semimetal Co3Sn2S2 with ferromagnetic ordering. We focuson the two types of the spin Hall current: one flowing in the in-planedirection with respect to the kagome lattice (in-plane spin Hall current), andone flowing in the stacking direction (out-of-plane spin Hall current). We showthe spin Hall conductivities for those spin currents drastically changedepending on the direction of the magnetic moment. Especially, the out-of-planespin Hall current may induce surface spin accumulation, which are useful forthe perpendicular magnetization switching via spin-orbit torque.

Effective model analysis of intrinsic spin Hall effect with magnetism in stacked-kagome Weyl semimetal Co3Sn2S2