By Topic

Influence of the Demagnetizing Field in Spin Dynamics With a Perpendicular-to-Plane Polarizer

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Jui-Hang Chang ; Dept. of Phys. & Center for Nanostorage Res., Nat. Taiwan Univ., Taipei ; Ching-Ray Chang

The authors derive an analytical form of the critical current density for the gyromagnetic precession in spin-transfer torque (STT) devices. The STT device which is injected by a perpendicular-to-plane polarized current has very different properties. We find that the critical current needed to generate a large cone-angle precession motion depends on the Gilbert damping constant, in-plane anisotropy field, stray field, and demagnetizing filed. Compared to the most used STT device, which is injected by a current with in-plane spin polarization, the critical current is always smaller.

Published in:

IEEE Transactions on Magnetics  (Volume:44 ,  Issue: 11 )