Physics – Condensed Matter – Materials Science
Scientific paper
2008-11-06
Physical Review B 79 (2009)
Physics
Condensed Matter
Materials Science
21 pages, 9 figures (color)
Scientific paper
10.1103/PhysRevB.79.024429
We study the magnetization-switching statistics following reversal of the applied field for three separate computational models representing the same physical system, an iron nanopillar. The primary difference between the models is the resolution of the computational lattice and, consequently, the intrinsic parameters that must be rescaled to retain similarity to the physical system. Considering the first-passage time to zero for the magnetization component in the longitudinal (easy-axis) direction, we look for applied fields that result in bimodal distributions of this time for each system and compare the results to the experimental system. We observe that the relevant fluctuations leading to bimodal distributions are different for each lattice resolution and result in magnetization-switching behavior that is unique to each computational model. Correct model resolution is thus essential for obtaining reliable numerical results for the system dynamics.
Brown Garfield
Kuhnle Arnold
Novotny Mark A.
Rikvold Per Arne
Thompson Heather S.
No associations
LandOfFree
Resolution-dependent mechanisms for bimodal switching-time distributions in simulated 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 Resolution-dependent mechanisms for bimodal switching-time distributions in simulated Fe nanopillars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resolution-dependent mechanisms for bimodal switching-time distributions in simulated Fe nanopillars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-228094