Nonlocal spin Hall effect and spin–orbit interaction in nonmagnetic metals

Abstract

Spin Hall effect in a nonlocal spin-injection device is theoretically studied. Using a nonlocal spin–injection technique, a pure spin current is created in a nonmagnetic metal (N). The spin current flowing in N is deflected by spin–orbit scattering to induce the Hall current in the transverse direction and accumulate charge at the edges of N, yielding the spin current induced Hall effect. We propose a method for extracting the spin–orbit coupling parameter in nonmagnetic metals via the nonlocal spin-injection technique.