2006•Unpublished venueRequires access

Micromagnetic Modeling of Magnetization Dynamics in Magnetic Tunnel Junctions Driven by Spin-Polarized Current

Giovanni Finocchio, Gregory D. Fuchs, L. Torres, Mario Carpentieri, Giancarlo Consolo, L. López-Dı́az, B. Azzerboni

Abstract

This paper presents micromagnetic simulations of magnetization dynamics driven by spin-polarized current in magnetic tunnel junctions (MTJ). The model is based on the coupling between the Gilbert equation and the first-principle term deduced by Slonczewski. The switching between the APS and PS occurs by a nucleation process. A comparison with spin valves shows that for the same range of currents and fields the switching time is longer for the MTJ

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Key concepts: Condensed matter physics, Micromagnetics, Magnetization, Magnetization dynamics, Tunnel magnetoresistance, Nucleation, Coupling (piping), Current (fluid)