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Numerical Study on Current-Induced Switching of Synthetic Antiferromagnet
- Authors
- Lee, Seo-Won; Lee, Kyung-Jin
- Issue Date
- 12월-2010
- Publisher
- KOREAN MAGNETICS SOC
- Keywords
- spin transfer torque; synthetic antiferromagnet
- Citation
- JOURNAL OF MAGNETICS, v.15, no.4, pp.149 - 154
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF MAGNETICS
- Volume
- 15
- Number
- 4
- Start Page
- 149
- End Page
- 154
- ISSN
- 1226-1750
- Abstract
- Synthetic antiferromagnets (SAFs) are used as free layer structures for various magnetic devices utilizing spin-transfer 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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