Current-Induced Nanomagnet Dynamics for Magnetic Fields Perpendicular to the Sample Plane

Preprint

3 March 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0403100

Abstract

We present electrical measurements of high-frequency magnetic dynamics excited by spin-polarized currents in Co/Cu/Ni80Fe20 nanopillar devices, with a magnetic field applied perpendicular to the sample layers. As a function of current and magnetic field, the dynamical phase diagram contains several distinguishable precessional modes and also static magnetic states. Using detailed comparisons with numerical simulations, we provide rigorous tests of the theory of spin-transfer torques.

Keywords

SPIN TRANSFER TORQUES
DYNAMICS FOR MAGNETIC
NUMERICAL SIMULATIONS
FIELDS PERPENDICULAR
NANOMAGNET DYNAMICS
INDUCED NANOMAGNET
CURRENT INDUCED
SPIN POLARIZED
MAGNETIC FIELD

All Related Versions

Version 1, 2004-03-03, ArXiv
Published version: Physical Review Letters, 93 (3), 036601.

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