Articles you may be interested inNonlinearities in composition dependence of structure parameters and magnetic properties of nanocrystalline fcc/bcc-mixed Co-Ni-Fe thin films Thin iron films (~18A thick and 90% enriched in Fe S7 ) were prepared on (001) Cu single-crystal substrates. The fcc structure was verified by electron microscopy. By Mossbauer spectroscopy it was found that antiferromagnetic ordering begins at around 80 ± 10K with hyperfine fields of about 16-20 kOe at 4.2 K. Additional proof for the existence of antiferromagnetism has been obtained by measuring the films in a longitudinal (parallel to the ')'-ray direction) external magnetic field. The apparent discrepancy in the literature of ferromagnetic and antiferromagnetic ordering in fcc films might be resolved by taking into account the differences concerning the film orientations.

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