Figure 1
APS/Alan Stonebraker

Figure 1: Spin Hall magnetoresistance occurs in hybrid systems combining a normal metal (blue) and a magnetic insulator (green). When a charge current (Icharge) flows through the metal, it generates a perpendicular spin current (Ispin), which results in an accumulation of spin at the metal-insulator interface. If the insulator’s magnetization (M) points perpendicular to the edge spin accumulation, then some of spins can transfer from metal to insulator. The net effect of this spin transfer is an increase in the effective resistance through the metal.