Physics – Condensed Matter – Materials Science
Scientific paper
2003-10-21
Physics
Condensed Matter
Materials Science
3 revtex pages, 5 figures, proceedings 9th joint MMM-Intermag
Scientific paper
10.1063/1.1689151
The continued increase in areal densities in magnetic recording makes it crucial to understand magnetization reversal in nanoparticles. We present finite-temperature micromagnetic simulations of hysteresis in Fe nanopillars with the long axis tilted at angles from 0 degrees to 90 degrees to the applied sinusoidal field. The field period is 15 ns, and the particle size is 9 x 9 x 150 nm. The system is discretized into a rectangular pillar of 7 x 7 x 101 spins each with uniform magnetization. At low angles, reversal begins at the endcaps and proceeds toward the center of the particle. At ninety degrees, reversal proceeds along the entire length of the particle (save at the ends). The switching field was observed to increase over the entire range of angles, consistent with recent experimental observations. A second, lower-resolution micromagnetic simulation with 1 x 1 x 17 spins, does not agree with experiment, but shows behavior very similar to that of the Stoner-Wohlfarth model of coherent rotation.
Brown Garfield
Novotny Mark A.
Rikvold Per Arne
Stinnett S. M.
No associations
LandOfFree
Angular Dependence of Switching Properties in Single Fe Nanopillars 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 Angular Dependence of Switching Properties in Single Fe Nanopillars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Angular Dependence of Switching Properties in Single Fe Nanopillars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-509708