We provide evidence for the effects of spin polarized current on a nanofabricated antiferromagnet incorporated into a spin-valve structure. Signatures of current-induced effects include bipolar steps in differential resistance, current-induced changes of exchange bias correlated with these steps, and deviations from the statistics expected for thermally activated switching of spin valves. We explain our observations by a combination of spin torque exerted on the interfacial antiferromagnetic moments, and electron-magnon scattering in antiferromagnet.
@article{arxiv.cond-mat/0703281,
title = {Effect of Polarized Current on the Magnetic State of Antiferromagnet},
author = {Sergei Urazhdin and Nicholas Anthony},
journal= {arXiv preprint arXiv:cond-mat/0703281},
year = {2009}
}