Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Spin Transfer Torque and Dynamics



Mark D. Stiles, J Miltat


The currents in magnetic multilayers are spin polarized and carry enough angular momentum that they can cause magnetic reversal and induce stable precession of the magnetization in thin magnetic layers. The flow of spins is determined by the spin-dependent transport properties, like conductivity, interface resistance, and spin-flip scattering in the magnetic multilayer. When an electron spin carried by the current interacts with a magnetic layer, the exchange interaction leads to torques between the spin and the magnetization. The torque that results from this interaction excites the magnetization when the current is large enough. The qualitative features of the dynamics that result from the current-induced torques are captured by a simple model in which the magnetization of the layer is assumed to be uniform. Even greater agreement results when finite temperature effects are included and the magnetization is allowed to vary throughout the film.
Spin Dynamics in Confined Magnetic Structures III: Topics in Applied Physics 101
Publisher Info
Springer Berlin / Heidelberg, Heidelberg, DE




Stiles, M. and Miltat, J. (2006), Spin Transfer Torque and Dynamics, Spin Dynamics in Confined Magnetic Structures III: Topics in Applied Physics 101, Springer Berlin / Heidelberg, Heidelberg, DE, [online], (Accessed May 26, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created November 1, 2006, Updated February 19, 2017