Title :
Micromagnetic Modeling of Magnetization Dynamics in Magnetic Tunnel Junctions Driven by Spin-Polarized Current
Author :
Finocchio, Giovanni ; Fuchs, Gregory ; Torres, Luis ; Carpentieri, Mario ; Consolo, Giancarlo ; Diaz, Luis Lopez ; Azzerboni, Bruno
Author_Institution :
Dipartimento di Fisica della Materia e Tecnologie Fisiche Avanzate, Messina Univ.
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
Keywords :
magnetic tunnelling; magnetisation; micromagnetics; spin valves; Gilbert equation; magnetic tunnel junctions; magnetization dynamics; micromagnetic modeling; nucleation process; spin valves; spin-polarized current; Equations; Magnetic tunneling; Magnetostatics; Micromagnetics; Polarization; Predictive models; Saturation magnetization; Spin valves; Torque; USA Councils;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1633135
