Publication detail
Analysis of oxygen induced anisotropy crossover in Pt/Co/MOx trilayers
MANCHON, A. DUCRUET, C. LOMBARD, L. AUFFRET, S. RODMACQ, B. DIENY, B. PIZZINI, S. VOGEL, J. UHLÍŘ, V. HOCHSTRASSER, M. PANACCIONE, G.
English title
Analysis of oxygen induced anisotropy crossover in Pt/Co/MOx trilayers
Type
Peer-reviewed article not indexed in WoS or Scopus
Language
en
Original abstract
Extraordinary Hall effect and x-ray spectroscopy measurements have been performed on a series of Pt/Co/MOx trilayers (M=Al, Mg, Ta, etc.) in order to investigate the role of oxidation in the onset of perpendicular magnetic anisotropy at the Co/MOx interface. It is observed that varying the plasma oxidation time modifies the magnetic properties of the Co layer, inducing a magnetic anisotropy crossover from in plane to out of plane. We focused on the influence of plasma oxidation on Pt/Co/AlOx perpendicular magnetic anisotropy. The interfacial electronic structure is analyzed via x-ray photoelectron spectroscopy measurements. It is shown that the maximum of out-of-plane magnetic anisotropy corresponds to the appearance of a significant density of Co-O bondings at the Co/AlOx interface. (C) 2008 American Institute of Physics.
Keywords in English
MAGNETIC TUNNEL-JUNCTIONS; MAGNETOCRYSTALLINE ANISOTROPY; PERPENDICULAR ANISOTROPY; AU MULTILAYERS; INTERFACE; OXIDATION; CO; MAGNETORESISTANCE; MONOLAYERS; INPLANE
Released
2008-08-15
ISSN
0021-8979
Journal
Journal of applied physics
Volume
104
Number
4
Pages from–to
043914-1–043914-7
Pages count
7