Title :
Influence of Different Spatial Distributions of Current Density and Spin-Torque Efficiency in the Dynamics of Point-Contact Devices
Author :
Consolo, G. ; Torres, L. ; Lopez-Diaz, L. ; Azzerboni, B.
Author_Institution :
Dipt. di Fisica della Materia e Tecnologie Fisiche Avanzate, Messina Univ.
fDate :
6/1/2007 12:00:00 AM
Abstract :
This paper deals with the influence of nonuniform distributions of both current density and spin-torque efficiency on the magnetization dynamics of point-contact devices. Results of micromagnetic calculations show how the inclusion of different spatial profiles could substantially affect both the magnetization dynamics in both time and frequency domain
Keywords :
Permalloy; current density; magnetisation; micromagnetics; quantum point contacts; spin polarised transport; current density; different spatial distributions; frequency domain; magnetization dynamics; micromagnetic calculations; point-contact device dynamics; spin-torque efficiency; time domain; Current density; Damping; Frequency domain analysis; Geometry; Magnetic confinement; Magnetic moments; Magnetization; Micromagnetics; Smoothing methods; Torque; Magnetization dynamics; micromagnetic modeling; point-contact devices; spin-transfer torque;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.892589
