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The step-induced in-plane uniaxial magnetic anisotropy of fcc Co/stepped Cu(001) was investigated using a curved substrate to provide a continuous range of vicinal angles from 0° to 6°. The anisotropy strength was found to depend linearly on the step density, indicating that the biaxial strain does not make a significant contribution to the step-induced anisotropy. Using a side growth geometry to decorate the Co step edges with Cu adsorbates, we observed that the step-induced anisotropy strength approaches zero at roughly 0.7 atomic rows of Cu, independent of step density.
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Kawakami et al. (1999) studied this question.
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