Engineering the magnetic anisotropy axes in epitaxial half-Heusler NiMnSb by Pt and Ta capping
F Gerhard, M Baussenwein, L Scheffler… - Applied Physics …, 2017 - pubs.aip.org
The magnetic anisotropy in NiMnSb has been found to be highly sensitive to layer
parameters, such as Mn concentration or thickness. Here, we report on the magnetic
anisotropy of thin epitaxial single crystal quality NiMnSb films (3–40 nm) in combination with
different capping layer materials, Ru, Pt, and Ta. We observe that the easy axis of the
magnetic anisotropy is forced into the [1 1 0] crystal direction for Pt capped and into the [110]
crystal direction for Ta capped NiMnSb, irrespective of the original anisotropy of the NiMnSb …
parameters, such as Mn concentration or thickness. Here, we report on the magnetic
anisotropy of thin epitaxial single crystal quality NiMnSb films (3–40 nm) in combination with
different capping layer materials, Ru, Pt, and Ta. We observe that the easy axis of the
magnetic anisotropy is forced into the [1 1 0] crystal direction for Pt capped and into the [110]
crystal direction for Ta capped NiMnSb, irrespective of the original anisotropy of the NiMnSb …
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