Evidence of a barrier oxidation dependence on the interfacial magnetism in Co/alumina based magnetic tunnel junctions

Telling, N. D.; van der Laan, G.; Ladak, S.; Hicken, R. J.; Arenholz, E.

Abstract

edge have been applied to explore the near-interfacial magnetism of Co electrodes in Co/alumina based magnetic tunnel junctions. By taking into account the formation of CoO at the ferromagnetic (FM)/barrier interface, the change in the total magnetic moment on metallic Co atoms as a function of barrier oxidation has been determined. The results demonstrate a strong correlation between the Co moments and measured TMR values, and an enhancement in the Co moments for moderate oxidation times.

Citation

Telling, N. D., van der Laan, G., Ladak, S., Hicken, R. J., & Arenholz, E. (2006). Evidence of a barrier oxidation dependence on the interfacial magnetism in Co/alumina based magnetic tunnel junctions. Journal of Applied Physics, 99(8), https://doi.org/10.1063/1.2171002

• Journal Article Type: Article
• Online Publication Date: Apr 24, 2006
• Publication Date: Apr 15, 2006
• Deposit Date: May 17, 2024
• Journal: Journal of Applied Physics
• Print ISSN: 0021-8979
• Electronic ISSN: 1089-7550
• Publisher: AIP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 99
• Issue: 8
• DOI: https://doi.org/10.1063/1.2171002
• Keywords: Magnetic tunnel junctions, Electromagnetism, Ferromagnetic materials, Interpolation, Oxides, Chemical elements, Magnetic circular dichroism spectroscopy, X-ray absorption spectroscopy, Chemical bonding, Regression analysis
• Public URL: https://keele-repository.worktribe.com/output/829045
• Publisher URL: https://pubs.aip.org/aip/jap/article-abstract/99/8/08E505/165060/Evidence-of-a-barrier-oxidation-dependence-on-the?redirectedFrom=fulltext