Thermal and Spin-Orbital Effects under the Action of Current on Spin Valves Containing β-Ta and NiFeCr Alloy Layers
摘要
Abstract
For microobjects based on spin valves, changes in the magnetic state are observed under the action of short-term direct current. It has been shown that the magnetic moment of the free layer rotates when a certain current density is attained. The rotation angle grows with increasing current density. The magnetic moment rotates predominantly due to the thermal effect of current. Rotation angle changes caused by spin accumulation in Ta or NiFeCr layers and the transfer of the spin-orbit torque of electrons to the magnetic moment of the free layer have been revealed.