Gd/Y superlattice

Epitaxial growth of rare earth systems 14 5.2.1.1. Gd/Y superlattices 47... 

Gd/Y superlattices. The Gd/Y system was one of the first rare-earfli superlattices to be grown and studied, and was the first system in which alternation of the sign of the coupling across a non-magnetic spacer layer was observed (Kwo et al. 1987). As in the epitaxial crystal regime, the Gd magnetization lies in the basal plane, where the... 

Fig. 20. Oscillation of the remanent magnetization and saturation magnetic field for Gd/Y superlattices (from Kwo et al. 1985a).

Fig. 21. Neutron scattering data from an antiferromagnetically aligned Gd/Y superlattice. Odd-numbered peaks arise from magnetic scattering (from Majkizak et al. 1986).

In addition to the simple superlattice structures described above, a number of more complex structures have been fabricated. They include Fibonacci sequences of Gd and Y (Majkrzak et al. 1991) and lanthanide/lanthanide superlattices with competing anisotropies, such as Ho/Er (Simpson et al. 1994), Gd/Dy, and DyATDy (Camley et al. 1990). We refer the reader to the original sources for details. 

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