Crossover from in-plane to perpendicular magnetization in ultrathin Ni/Cu(001) films
- 1 November 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 50 (18) , 13467-13471
- https://doi.org/10.1103/physrevb.50.13467
Abstract
The easy axis of magnetization in Ni/Cu(001) films exhibits a crossover from in-plane to perpendicular orientation with increasing film thickness. This reorientation at ≊7 monolayers, observed by ferromagnetic resonance, is substantially different from previous findings for Fe and Co films and can be extrapolated from thin-film data. The artificial lattice structure of Ni on Cu yields within magnetoelasticity theory a volume anisotropy of 29 μeV/atom agreeing perfectly with experiment. In thinner films the surface anisotropy of -77 μeV/atom dominates.Keywords
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