Mechanisms of spin-polarized current-driven magnetization switching

Abstract

The mechanisms of the magnetization switching of magnetic multilayers driven by a current are studied by including exchange interaction between local moments and spin accumulation of conduction electrons. It is found that this exchange interaction leads to two additional terms in the Landau-Lifshitz-Gilbert equation: an effective field and a spin torque. Both terms are proportional to the transverse spin accumulation and have comparable magnitudes.

References in corpus (6)

• Current-driven Magnetization Reversal and Spin Wave Excitations in Co/Cu/Co Pillars
• Finite-element theory of transport in ferromagnet-normal metal systems
• The Role of Spin-Dependent Interface Scattering in Generating Current-Induced Torques in Magnetic Multilayers
• Current driven switching of magnetic layers
• Conductance modulation by spin precession in non-collinear ferromagnet-normal metal-ferromagnet systems
• New Origin For Spin Current And Current-Induced Spin Precession In Magnetic Multilayers

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