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| Numerical Study on Current-Induced Switching of Synthetic Antiferromagnet |
| Journal of Magnetics, Volume 15, Number 4, 31 Dec 2010, Pages 149-154 |
Seo-Won Lee (Department of Materials Science and Engineering, Korea University), Kyung-Jin Lee *  (Department of Materials Science and Engineering, Korea University) |
| Abstract |
Synthetic antiferromagnets (SAFs) are used as free layer structures for various magnetic devices utilizing spintransfer torque (STT). Therefore, it is important to understand current-induced excitation of SAFs. By means of drift-diffusion and macrospin models, we studied the current-induced excitation of a SAF-free layer structure (NiFe/Ru/NiFe). The simulation results were compared with the previous experimental results [N. Smith et al., Phys. Rev. Lett. 101, 247205 (2008)]. We confirmed that a nonzero STT through the Ru layer is essential for explaining the experimental results. |
| Keywords: spin transfer torque; synthetic antiferromagnet |
| DOI: 10.4283/JMAG.2010.15.4.149 |
| Full Text: PDF |
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