期刊
APPLIED PHYSICS LETTERS
卷 100, 期 5, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3682103
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资金
- Netherlands Organization for Scientific Research
- Marie Curie Cofund Action [680-50-1024]
- European Community [251698: 3DMAGNANOW, 247368: 3SPIN]
We experimentally study the tunability of the Ruderman-Kittel-Kasuya-Yosida (RKKY) interlayer exchange coupling (IEC) in Pt/CoFeB/Pt/Ru/Pt/CoFeB/Pt stacks with perpendicular magnetic anisotropy (PMA). The perpendicular magnetization of a single Pt/Co60Fe20B20/Pt (at. %) shows full remanence and square hysteresis loops for a CoFeB thickness range of 0.60-1.0 nm. By inserting a Pt layer between the Ru and CoFeB, the PMA of the ultrathin CoFeB layers is stabilized and the IEC can be tuned. In particular, we show that the IEC versus Pt thickness exhibits a simple exponential decay with a decay length of 0.16 nm. (C) 2012 American Institute of Physics. [doi:10.1063/1.3682103]
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