The spin Hall effect in heavy metals converts charge current into pure spin current, which can be injected into an adjacent ferromagnet to exert a torque. This spin-orbit torque (SOT) has been widely used to manipulate the magnetization in metallic ferromagnets. In the case of magnetic insulators (MIs), although charge currents cannot flow, spin currents can propagate, but current-induced contr...

The spin Hall effect is the appearance of a transverse spin current in a non-magnetic conductor by pure electrical control. The extrinsic spin Hall effect originates from the spin-dependent skew scattering of electrons by impurities in the presence of SOI and can be used for an efficient conversion of charge current into spin-polarized currents. Recently, it has been explored for replacing ferr...

The fluctuation-induced Hall electromotive force, [deltaJ x deltaB]/nee, is experimentally measured in the high-temperature interior of a reversed-field pinch plasma by a fast Faraday rotation diagnostic. It is found that the Hall dynamo effect is significant, redistributing (flattening) the equilibrium core current near the resonant surface during a reconnection event. These results imply that...

We investigate fast-pulse switching of in-plane-magnetized magnetic tunnel junctions (MTJs) within 3-terminal devices in which spin-transfer torque is applied to the MTJ by the giant spin Hall effect. We measure reliable switching, with write error rates down to 10-5, using current pulses as short as just 2 ns in duration. This represents the fastest reliable switching reported to date for any ...

The spin Hall effect of a Dirac Hamiltonian system is studied using semiclassical analyses and the Kubo formula. In this system, conductivity dependent on definition current. All components vanish when current defined as flow angular momentum. contrast, off-diagonal are non-zero scale with carrier velocity (and effective $g$-factor) consists magnetic moment. We derive analytical formula conduct...

The stability of the hydromagnetic Couette flow is investigated when a constant current is applied along the axis of the cylinders. It is shown that if the resulting toroidal magnetic field depends only on this current, no linear instability to axisymmetric disturbances is possible. c © 2005 Elsevier Ltd. All rights reserved.

We demonstrate that a quantum spin Hall current, spontaneously generated at the edge of a two-dimensional topological insulator, acts as a source of spin pumping for a magnetic impurity with uniaxial anisotropy. One can then manipulate the impurity spin direction by means of an electrical current without using either magnetic electrodes or an external magnetic field. Furthermore we show that th...

Submitted for the MAR06 Meeting of The American Physical Society Spin Hall effect in p-type semiconductors in magnetic fields MEHDI ZAREA, SERGIO ULLOA, Ohio University — We calculate the spin Hall conductivity driven by Rashba spin-orbit interaction in p-type two-dimensional semiconductors in the presence of a perpendicular magnetic field. For a highly confined quantum well the eigenstates and...