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Theory of perpendicular magnetocrystalline anisotropy in Fe/MgO (001)

Title
Theory of perpendicular magnetocrystalline anisotropy in Fe/MgO (001)
Authors
Odkhuu, DorjYun, Won SeokRhim, S. H.Hong, Soon Cheol
Issue Date
2016-09-15
Citation
Journal of Magnetism and Magnetic Materials, 414, 126-131
Type
Article
Article Type
Article
Keywords
AnisotropyFe LayerFe/MgOMagnesiaMagnetocrystalline AnisotropySpin-Orbit CouplingSpin-Orbit CouplingsSurface Layers
ISSN
0304-8853
Abstract
The origin of large perpendicular magnetocrystalline anisotropy (PMCA) in Fe/MgO (001) is revealed by comparing Fe layers with and without the MgO. Although Fe-O p-d hybridization is weakly present, it cannot be the main origin of the large PMCA as claimed in previous study. Instead, perfect epitaxy of Fe on the MgO is more important to achieve such large PMCA. As an evidence, we show that the surface layer in a clean free-standing Fe (001) dominantly contributes to EMCA, while in the Fe/MgO, those by the surface and the interface Fe layers contribute almost equally. The presence of MgO does not change positive contribution from , wherease it reduces negative contribution from and . © 2016 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/5081
DOI
10.1016/j.jmmm.2016.04.027
Publisher
Elsevier B.V.
Files:
There are no files associated with this item.
Collection:
ETC1. Journal Articles


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