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Polarized neutron reflectivity from monolayers of self-assembled magnetic nanoparticles
, O. Petracic, A. Devishvili, K. Theis-Bröhl, B.P. Toperverg, H. Zabel
Published in Institute of Physics Publishing
Volume: 27
Issue: 13
We prepared monolayers of iron oxide nanoparticles via self-assembly on a bare silicon wafer and on a vanadium film sputter deposited onto a plane sapphire substrate. The magnetic configuration of nanoparticles in such a dense assembly was investigated by polarized neutron reflectivity. A theoretical model fit shows that the magnetic moments of nanoparticles form quasi domain-like configurations at remanence. This is attributed to the dipolar coupling amongst the nanoparticles. © 2015 IOP Publishing Ltd.
About the journal
JournalJournal of Physics Condensed Matter
PublisherInstitute of Physics Publishing