Spin polarization and barrier-oxidation effects at the Co ∕alumina interface in magnetic tunnel junctions

The electronic structure and polarization in magnetic tunnel junctions prepared with varying degrees of barrier-layer oxidation have been studied using x-ray absorption spectroscopy across the Co L 2 , 3 absorption edges. It was found that the Co electronic structure near the Co ∕alumina interface t...

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Veröffentlicht in:	Applied physics letters 2004-10, Vol.85 (17), p.3803-3805
Hauptverfasser:	Telling, N. D., van der Laan, G., Ladak, S., Hicken, R. J.
Format:	Artikel
Sprache:	eng
Schlagworte:	ABSORPTION ABSORPTION SPECTROSCOPY ALUMINIUM OXIDES CHEMICAL BONDS COBALT COBALT OXIDES ELECTRONIC STRUCTURE INTERFACES LAYERS MAGNETIC CIRCULAR DICHROISM MAGNETIC MATERIALS MATERIALS SCIENCE OXIDATION PARAMAGNETISM SPIN SPIN ORIENTATION TEMPERATURE RANGE 0273-0400 K TUNNEL EFFECT X-RAY SPECTROSCOPY
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