Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Numerical Study on Current-Induced Switching of Synthetic Antiferromagnet

  • Lee, Seo-Won (Department of Materials Science and Engineering, Korea University) ;
  • Lee, Kyung-Jin (Department of Materials Science and Engineering, Korea University)
  • Received : 2010.10.20
  • Accepted : 2010.11.25
  • Published : 2010.12.31
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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.

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References

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