Analysis of oxygen induced anisotropy crossover in Pt/Co/MOx trilayers

A. Manchon; C. Ducruet; L. Lombard; S. Auffret; B. Rodmacq; B. Dieny; S. Pizzini; J. Vogel; V. Uhlíř; M. Hochstrasser; G. Panaccione

doi:10.1063/1.2969711

Analysis of oxygen induced anisotropy crossover in Pt/Co/MOx trilayers

A. Manchon^*, C. Ducruet, L. Lombard, S. Auffret, B. Rodmacq, B. Dieny, S. Pizzini, J. Vogel, V. Uhlíř, M. Hochstrasser, G. Panaccione

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

209 Scopus citations

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.

Original language	English (US)
Article number	043914
Journal	Journal of Applied Physics
Volume	104
Issue number	4
DOIs	https://doi.org/10.1063/1.2969711
State	Published - 2008
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.2969711

Cite this

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title = "Analysis of oxygen induced anisotropy crossover in Pt/Co/MOx trilayers",

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.",

author = "A. Manchon and C. Ducruet and L. Lombard and S. Auffret and B. Rodmacq and B. Dieny and S. Pizzini and J. Vogel and V. Uhl{\'i}{\v r} and M. Hochstrasser and G. Panaccione",

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doi = "10.1063/1.2969711",

language = "English (US)",

volume = "104",

journal = "Journal of Applied Physics",

issn = "0021-8979",

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TY - JOUR

T1 - Analysis of oxygen induced anisotropy crossover in Pt/Co/MOx trilayers

AU - Manchon, A.

AU - Ducruet, C.

AU - Lombard, L.

AU - Auffret, S.

AU - Rodmacq, B.

AU - Dieny, B.

AU - Pizzini, S.

AU - Vogel, J.

AU - Uhlíř, V.

AU - Hochstrasser, M.

AU - Panaccione, G.

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

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U2 - 10.1063/1.2969711

DO - 10.1063/1.2969711

M3 - Article

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VL - 104

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 4

M1 - 043914

ER -

Analysis of oxygen induced anisotropy crossover in Pt/Co/MOx trilayers

Abstract

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