X-ray analysis of the magnetic influence of oxygen in Pt/Co/AlOx trilayers

X-ray analysis of the magnetic influence of oxygen in Pt/Co/AlOx trilayers

Peer-reviewed article not indexed in WoS or Scopus

X-ray spectroscopy measurements have been performed on a series of Pt/Co/AlOx trilayers to investigate the role of Co oxidation in the perpendicular magnetic anisotropy at the Co/AlOx interface. It is observed that varying the degree of oxidation modifies the magnetic properties of the Co layer, inducing a magnetic anisotropy crossover from in plane to out of plane. The microscopic structural properties are analyzed via x-ray photoelectron spectroscopy measurements. It is shown that increasing the oxidation time enhances the amount of interfacial oxide, which may be at the origin of perpendicular magnetic anisotropy.

X-ray spectroscopy measurements have been performed on a series of Pt/Co/AlOx trilayers to investigate the role of Co oxidation in the perpendicular magnetic anisotropy at the Co/AlOx interface. It is observed that varying the degree of oxidation modifies the magnetic properties of the Co layer, inducing a magnetic anisotropy crossover from in plane to out of plane. The microscopic structural properties are analyzed via x-ray photoelectron spectroscopy measurements. It is shown that increasing the oxidation time enhances the amount of interfacial oxide, which may be at the origin of perpendicular magnetic anisotropy.

Magnetocrystalline anisotropy; Perpendicular anisotropy; Multilayers; Oxidation; Co; Pt; Monolayers; Dichroism

Magnetocrystalline anisotropy; Perpendicular anisotropy; Multilayers; Oxidation; Co; Pt; Monolayers; Dichroism

MANCHON, A.; PIZZINI, S.; VOGEL, J.; UHLÍŘ, V.; LOMBARD, L.; DUCRUET, C.; AUFFRET, S.; RODMACQ, B.; DIENY, B.; HOCHSTRASSER, M.; PANACCIONE, G.

2010

15.04.2008

0021-8979

JOURNAL OF APPLIED PHYSICS

103

7

United States of America

07A912-1

07A912-3

3