We have used polarized neutron reflectometry to study the magnetic structure of an Fe/Si multilayer film. By simultaneous refinement of both plus and minus reflectivities we have extracted separate nuclear and magnetic scattering density profiles that include a 6-Å-thick magnetically dead layer in Fe at the interface. This result supports the contention that the antiferromagnetic coupling reported in this system is mediated by the presence of Fe in the Si interlayers.
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Ankner et al. (1993) studied this question.
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