DOI: 10.1063/1.2171002

¤ OpenAccess: Green

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

Neil D. Telling,G. van der Laan,Sam Ladak,R. J. Hicken,Elke Arenholz

Magnetic moment

Magnetism

Magnetic circular dichroism

2006

Soft x-ray absorption spectroscopy and magnetic circular dichroism at the CoL2,3 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.

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“Evidence of a barrier oxidation dependence on the interfacial magnetism in Co/alumina based magnetic tunnel junctions” is a paper by Neil D. Telling G. van der Laan Sam Ladak R. J. Hicken Elke Arenholz published in 2006. It has an Open Access status of “green”. You can read and download a PDF Full Text of this paper here.