K2 scales linearly with work-function difference across Pt/Co/X stacks (X = Pd, Cu, Pt, Mo, Ru, W, Ta), indicating inversion asymmetry as the main source of second-order interfacial anisotropy.
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Intrinsic origin of interfacial second-order magnetic anisotropy in ferromagnet/normal metal heterostructures
K2 scales linearly with work-function difference across Pt/Co/X stacks (X = Pd, Cu, Pt, Mo, Ru, W, Ta), indicating inversion asymmetry as the main source of second-order interfacial anisotropy.