Magnetic domain wall motion by spin transfer

Abstract

The discovery that a spin polarized current can exert a large torque on a ferromagnet through a transfusion of spin angular momentum, offers a new way to control a magnetization by simple current injection, without the help of an applied external field. Spin transfer can be used to induce magnetization reversals and oscillations, or to control the position of a magnetic domain wall. In this review, we focus on this last mechanism, which is today the subject of an extensive research, both because the microscopic details for its origin are still debated, but also because promising applications are at stake for non-volatile magnetic memories.

References in corpus (5)

• Anomalous Bias Dependence of Spin Torque in Magnetic Tunnel Junctions
• Microscopic Calculation of Spin Torques in Disordered Ferromagnets
• High domain wall velocities due to spin currents perpendicular to the plane
• The domain wall spin torque-meter
• High domain wall velocity at zero magnetic field induced by low current densities in spin-valve nanostripes

Cited by in corpus (8)

• Spin torque building blocks
• Spin Dynamics with Inertia in Metallic Ferromagnets
• Improved Domain Wall Dynamics and Magnonic Torques using Topological Insulators
• Superconducting Spintronics with Magnetic Domain Walls
• Asymmetric Ferromagnetic Resonance, Universal Walker Breakdown, and Counterflow Domain Wall Motion in the Presence of Multiple Spin-Orbit Torques
• Magnetization reversal driven by spin-transfer-torque in perpendicular shape anisotropy magnetic tunnel junctions
• Current Controlled Magnetization Switching in Cylindrical Nanowires for High-Density 3D Memory Applications
• Anomalous domain wall velocity and Walker breakdown in hybrid systems with anisotropic exchange