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We provide evidence for the effects of spin polarized current on a nanofabricated antiferromagnet incorporated into a spin-valve structure. The signatures of the 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 an antiferromagnet.

Source Citation

Urazhdin, Sergei., &Anthony, Nicholas. (2007). Effect Of Polarized Current On The Magnetic State Of An Antiferromagnet. Physical Review Letters, 99(4).