The effect of a capping layer on the exchange coupled system was investigated. The NiO capping layer is able to enhance the unidirectional anisotropy of the system to This strong is thought to be caused by large stress emancipation of the NiO film through thermal annealing, which assists spreading of the CrMnPt lattice distortion in a desirable direction. This lattice distortion, in turn, leads to the enhancement of the CrMnPt magnetocrystalline anisotropy. The NiO capped system exhibits the same high blocking temperature of as the noncapped one, i.e., there is no reduction due to the amplification of the CrMnPt lattice distortion.
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Research Article| December 08 1997
Enhanced unidirectional anisotropy of the system by the NiO capping layer
Susumu Soeya, Hiroyuki Hoshiya, Kenichi Meguro, Hiroshi Fukui; Enhanced unidirectional anisotropy of the system by the NiO capping layer. Appl. Phys. Lett. 8 December 1997; 71 (23): 3424–3426. https://doi.org/10.1063/1.120355
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