| Autor: |
Telling, N. D., van der Laan, G., Ladak, S., Hicken, R. J., Arenholz, E. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 4/15/2006, Vol. 99 Issue 8, p08E505, 3p, 3 Graphs |
| Abstrakt: |
Soft x-ray absorption spectroscopy and magnetic circular dichroism at the Co L2,3 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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