Transition from the macrospin to chaotic behaviour by a spin-torque driven magnetization precession of a square nanoelement
Other Condensed Matter
2009-11-10 v1 Mesoscale and Nanoscale Physics
Abstract
We demonstrate (using full-scale micromagnetic simulations) that the spin injection driven steady-state precession of a thin magnetic nanoelement exhibit a complicate transition from the quasi-macrospin to the chaotic behaviour with the increasing element size. For nanoelement parameters typical for those used experimentally we have found that the macrospin approximation becomes invalid already for very small nanoelement sizes (~ 30 nm), in contrast to the previously reported results (Li and Zhang, Phys. Rev. B, vol. B68, 024404-1 (2003))
Keywords
Cite
@article{arxiv.cond-mat/0408615,
title = {Transition from the macrospin to chaotic behaviour by a spin-torque driven magnetization precession of a square nanoelement},
author = {D. V. Berkov and N. L. Gorn},
journal= {arXiv preprint arXiv:cond-mat/0408615},
year = {2009}
}
Comments
Submitted to Phys. Rev. B