Metallic-type oscillatory interlayer exchange coupling across an epitaxial FeSi spacer -: art. no. 157202

被引:64
作者
Gareev, RR [1 ]
Bürgler, DE [1 ]
Buchmeier, M [1 ]
Olligs, D [1 ]
Schreiber, R [1 ]
Grünberg, P [1 ]
机构
[1] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany
关键词
D O I
10.1103/PhysRevLett.87.157202
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study interlayer exchange coupling in epitaxial Fe/Fe0.56Si0.44/Fe trilayers. Iron-silicide spacers with high structural and compositional homogeneity for thicknesses up to 34 Angstrom are grown by coevaporation from two electron-beam sources. The coupling strength oscillates with spacer thickness for temperatures from 20 to 300 K with two antiferromagnetic maxima at 12 and 26 Angstrom, and it clearly increases with decreasing temperature down to 80 K. We conclude that the coupling across ordered Fe1-xSix (x approximate to 0.5) is described by the conventional theory of interlayer coupling across metallic spacers.
引用
收藏
页码:157202/1 / 157202/4
页数:4
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