Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2005-01-27
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
8 pages, 3 figures
Scientific paper
10.1103/PhysRevB.73.014408
The mode dependence of current-induced magnetic excitations in spin valves is studied theoretically. The torque exerted on the magnetization by transverse spin currents as well as the Gilbert damping constant are found to depend strongly on the wave length of the excitation (spin wave). Analytic expressions are presented for the critical currents that excite a selected spin wave. The onset of macrospin (zero wavelength) vs finite wavelength instabilities depends on the device parameters and the current direction, in agreement with recent experimental findings.
Bauer Gerrit E. W.
Brataas Arne
Tserkovnyak Yaroslav
No associations
LandOfFree
Current-induced macrospin vs spin-wave excitations in spin valves does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Current-induced macrospin vs spin-wave excitations in spin valves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current-induced macrospin vs spin-wave excitations in spin valves will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-431030