Abstract
Magnetic properties of MgO-[Co/Pt] multilayers with a CoFeB insertion layer were investigated and the structure was adopted as a recording layer in magnetic tunnel junctions (MTJs) with perpendicular magnetic easy-axis to attain a high thermal stability. Perpendicular easy-axis was obtained with the Pt thickness range of 0.6-1.2 nm and the CoFeB thickness range of 0.6-1.5 nm. As-made MTJs employing the CoFeB-[Co/Pt] multilayer structure as a recording layer showed tunnel magnetoresistance of 40 on average. A high thermal stability factor over 200 was obtained in the MTJs with the size of 25 nm in diameter.
| Original language | English |
|---|---|
| Article number | 17C721 |
| Journal | Journal of Applied Physics |
| Volume | 113 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 2013 May 7 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Ishikawa, S., Sato, H., Yamanouchi, M., Ikeda, S., Fukami, S., Matsukura, F., & Ohno, H. (2013). Magnetic properties of MgO-[Co/Pt] multilayers with a CoFeB insertion layer. Journal of Applied Physics, 113(17), [17C721]. https://doi.org/10.1063/1.4798499