Abstract
We have calculated the electronic structure of the 2Cr/3Fe/2Cr slab in bcc(110) geometry using FLAPW method in the local spin density approximation (LDA). The main aim of this work was to compare the calculated values of the hyperfine fields (Hf) with these obtained in the experiment carried out by Żukrowski et al. (J. Magn. Magn. Mater, 1995, 145, 97).Our calculation shows the influence of the ordering on the Fe hyperfine fields and for the measured Cr/3.3Fe/Cr film we suggest the existence of two different Hf values in each Fe plane, differing by 0.4–0.8 T. The magnetic moments of chromium are near 0.7μB on the surface and oppositely oriented in the plane, while subsurface moments are small and anti-parallel to iron spins. The moments of iron atoms on the interface are slightly reduced.
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