Spin imbalance of charge carriers induced by an electric current
arXiv:1906.04851 · doi:10.1016/j.jmmm.2019.165904
Abstract
We analyze the contribution of the inhomogeneous magnetic field induced by an electrical current to the spin Hall effect in metals. The Zeeman coupling between the field and the electron spin leads to a spin dependent force, and to spin accumulation at the edges. We compare the effect of this relativistic correction to the electron dynamics to the features induced by the spin-orbit interaction. The effect of current induced magnetic fields on the spin Hall effect can be comparable to the extrinsic contribution from the spin-orbit interaction, although it does not require the presence of heavy elements with a strong spin-orbit interaction. The induced spins are oriented normal to the metal slab.
References in corpus (8)
- Spin Hall effect
- Universal Intrinsic Spin-Hall Effect
- Direct electronic measurement of the spin Hall effect
- Scaling of spin Hall angle in 3d, 4d and 5d metals from Y3Fe5O12/metal spin pumping
- Suppression of the Persistent Spin Hall Current by Defect Scattering
- Semiclassical theories of the anomalous Hall effect
- Giant Orbital Hall Effect in Transition Metals: Origin of Large Spin and Anomalous Hall Effects
- Observation of the inverse spin Hall effect in silicon