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Spin-torque oscillator using a perpendicular polarizer with double free layers
- Authors
- Seo, S.-M.; Lee, K.-J.
- Issue Date
- 2008
- Publisher
- Seoul National University 501-321
- Keywords
- Anisotropy; Negative anisotropy; Spin torque oscillator; Spin transfer torque
- Citation
- Journal of Magnetics, v.13, no.4, pp.153 - 156
- Indexed
- SCOPUS
KCI
- Journal Title
- Journal of Magnetics
- Volume
- 13
- Number
- 4
- Start Page
- 153
- End Page
- 156
- ISSN
- 1226-1750
- Abstract
- We conducted a micromagnetic modeling study to investigate the spin torque oscillator (STO) using a perpendicular polarizer. We used an additional layer of negative anisotropy constant materials (NAM) on a conventional STO. For the NAM layer, the magnetic easy plane is parallel to the in-plane easy axis of the free layer, and inhibits the development of the out-of-plane component of the magnetization in the free layer. As a result, this new type of STO provides a high frequency limit up to 50 GHz. © 2008 Journal of Magnetics.
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