Jf. Ankner et al., MAGNETIC DEAD LAYER IN FE SI MULTILAYER - PROFILE REFINEMENT OF POLARIZED NEUTRON REFLECTIVITY DATA/, Journal of applied physics, 73(10), 1993, pp. 6436-6437
We have used polarized neutron reflectometry to study the magnetic str
ucture 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-angstrom-thick m
agnetically dead layer in Fe at the interface. This result supports th
e contention that the antiferromagnetic coupling reported in this syst
em is mediated by the presence of Fe in the Si interlayers.