CROSSOVER FROM INPLANE TO PERPENDICULAR MAGNETIZATION IN ULTRATHIN NI/CU(001) FILMS

被引:404
作者
SCHULZ, B
BABERSCHKE, K
机构
[1] Institut für Experimentalphysik, Freie Universität Berlin, D-14195 Berlin
来源
PHYSICAL REVIEW B | 1994年 / 50卷 / 18期
关键词
D O I
10.1103/PhysRevB.50.13467
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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 eV/atom agreeing perfectly with experiment. In thinner films the surface anisotropy of -77 eV/atom dominates. © 1994 The American Physical Society.
引用
收藏
页码:13467 / 13471
页数:5
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