Nanoscale control of perpendicular magnetic anisotropy, coercive force and domain structure in ultrathin Ru/Co/W/Ru films
作者： A.G. Kolesnikov , A.V. Ognev , M.E. Stebliy , L.A. Chebotkevich , A.V. Gerasimenko
DOI: 10.1016/J.JMMM.2018.01.056
关键词:
摘要: Abstract Development of fast and energy-efficient spintronic devices requires novel nanoscaled materials with controllable magnetic properties. Here we show that the introduction an ultrathin W interlayer between Co Ru in Ru/Co/Ru films enables to preserve perpendicular anisotropy (PMA) dramatically reduce coercive force size domains. We find Ru/Co/W/Ru up 0.35 nm nominal thickness have robust PMA. The observed formation a dendritic domain structure small domains having homochiral Neel walls is indicator interfacial Dzyaloshinskii-Moriya interaction appearing trilayers asymmetrical interfaces. inversion-symmetry-broken are potential host for nucleation manipulation non-trivial spin textures like chiral skyrmions.
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