Asymmetric Reversal in Inhomogeneous Magnetic Heterostructures
Materials Science
2009-11-11 v1
Abstract
Asymmetric magnetization reversal is an unusual phenomenon in antiferromagnet / ferromagnet (AF/FM) exchange biased bilayers. We investigated this phenomenon in a simple model system experimentally and by simulation assuming inhomogeneously distributed interfacial AF moments. The results suggest that the observed asymmetry originates from the intrinsic broken symmetry of the system, which results in local incomplete domain walls parallel to the interface in reversal to negative saturation of the FM. Magneto-optic Kerr effect unambiguously confirms such an asymmetric reversal and a depth-dependent FM domain wall in accord with the magnetometry and simulations.
Keywords
Cite
@article{arxiv.cond-mat/0603060,
title = {Asymmetric Reversal in Inhomogeneous Magnetic Heterostructures},
author = {Zhi-Pan Li and Oleg Petracic and Rafael Morales and Justin Olamit and Xavier Batlle and Kai Liu and Ivan K. Schuller},
journal= {arXiv preprint arXiv:cond-mat/0603060},
year = {2009}
}
Comments
4 pages, 4 figures