Abstract
The electronic structure and magnetic properties of Fe m /Cr n ( m=3, 4; n=1, 3, 4) superlattice were studied using the density functional full-potential linearized augmented plane-wave (FLAPW) method. The results showed that the ferromagnetic coupling existed for the adjacent Fe layers in the Fe 3/Cr 1 and Fe 3/Cr 3 superlattices and the antiferromagnetic coupling existed for Fe 4/Cr 4 superlattice in the ground state. The magnetic moments of Cr atoms changed direction from layer to layer, and an antiferromagnetic coupling between Fe and Cr at the interfacial layer could be observed.
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