Fig. 1: The physical correlation between spin Hall conductivity (SHC), spin-splitting types, and spin distribution.
From: Rashba spin-splitting driven inverse spin Hall effect in MnBi2Te4

a Schematic diagram illustrating the relationship between electron spin orientation, spin current, and charge current in SHC devices. b SHC signals as a function of the type of spin-splitting (Rashba and Lifshitz) and spin distribution in the band structure. The \({j}_{C}^{z}\) represents the charge current in the z direction. And \({j}_{x}^{sy}\) and \({j}_{y}^{sx}\) denote the spin currents along the x and y orientations, respectively, where sy and sx indicate the spin directions. In the SHC \({\sigma }_{\beta \gamma }^{\alpha }\), α, β, and γ correspond to the directions of spin, spin current, and charge current, which can be arranged in any combination of x, y, and z.