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.
Original language | English |
---|---|
Pages (from-to) | 149-154 |
Number of pages | 6 |
Journal | Journal of Magnetics |
Volume | 15 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2010 Dec |
Keywords
- Spin transfer torque
- Synthetic antiferromagnet
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering