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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/40318

Title: Antiferromagnetic interlayer exchange coupling between Fe3O4 layers across a nonmagnetic MgO dielectric layer
Author: ARORA, SUNIL KUMAR
WU, HAN-CHUN
SHVETS, IGOR
Sponsor: Science Foundation Ireland
Author's Homepage: http://people.tcd.ie/ivchvets
http://people.tcd.ie/aroras
http://people.tcd.ie/wuh2
Keywords: Atomic, molecular and chemical physics
ferromagnetic electrodes
Issue Date: 2008
Publisher: American Institute of Physics
Citation: Wu, H. C.; Arora, S. K.; Mryasov, O. N.; Shvets, I. V., Antiferromagnetic interlayer exchange coupling between Fe3O4 layers across a nonmagnetic MgO dielectric layer, Applied Physics Letters, 92, 18, 2008, 182502
Series/Report no.: Applied Physics Letters;
92;
18;
Abstract: We have investigated the interlayer exchange coupling between the epitaxial spinel Fe3O4 layers across an insulating nonmagnetic MgO spacer. The epitaxial structure used for these investigations was Fe3O4 (10 nm)/MgO (0.8–3 nm)/Fe3O4 (10 nm)/NiO (15 nm) multilayers grown on MgO (100) substrates. We find that the two Fe3O4 layers are antiferromagnetic coupled through the MgO spacer when the MgO thickness is less than 1.5 nm. Furthermore, ab initio calculation of IEC for Fe/MgO/Fe indicates the importance of electrode states, in particular, partial oxidation of the ferromagnetic electrodes.
Description: PUBLISHED
URI: http://hdl.handle.net/2262/40318
Related links: http://dx.doi.org/10.1063/1.2919081
Appears in Collections:Physics (Scholarly Publications)

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