X-ray analysis of oxygen-induced perpendicular magnetic anisotropy in Pt / Co / AlOx trilayers

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

doi:10.1016/j.jmmm.2008.02.131

X-ray analysis of oxygen-induced perpendicular magnetic anisotropy in Pt / Co / AlO_x trilayers

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

^*Corresponding author for this work

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

29 Scopus citations

Abstract

X-ray spectroscopy measurements have been performed on a series of Pt / Co / AlO_x trilayers to investigate the role of Co oxidation in the perpendicular magnetic anisotropy of the Co / AlO_x interface. It is observed that high temperature annealing modifies the magnetic properties of the Co layer, inducing an enhancement of the perpendicular magnetic anisotropy. The microscopic structural properties are analyzed via X-ray Absorption Spectroscopy, X-ray Magnetic Circular Dichroism and X-ray Photoelectron Spectroscopy measurements. It is shown that annealing enhances the amount of interfacial oxide, which may be at the origin of a strong perpendicular magnetic anisotropy.

Original language	English (US)
Pages (from-to)	1889-1892
Number of pages	4
Journal	Journal of Magnetism and Magnetic Materials
Volume	320
Issue number	13
DOIs	https://doi.org/10.1016/j.jmmm.2008.02.131
State	Published - Jul 2008
Externally published	Yes

Keywords

Magnetic tunnel junctions
Perpendicular magnetic anisotropy
X-ray absorption spectroscopy (XAS)
X-ray magnetic circular dichroism (XMCD)
X-ray photoelectron spectroscopy (XPS)

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2008.02.131

Cite this

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title = "X-ray analysis of oxygen-induced perpendicular magnetic anisotropy in Pt / Co / AlOx trilayers",

abstract = "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 of the Co / AlOx interface. It is observed that high temperature annealing modifies the magnetic properties of the Co layer, inducing an enhancement of the perpendicular magnetic anisotropy. The microscopic structural properties are analyzed via X-ray Absorption Spectroscopy, X-ray Magnetic Circular Dichroism and X-ray Photoelectron Spectroscopy measurements. It is shown that annealing enhances the amount of interfacial oxide, which may be at the origin of a strong perpendicular magnetic anisotropy.",

keywords = "Magnetic tunnel junctions, Perpendicular magnetic anisotropy, X-ray absorption spectroscopy (XAS), X-ray magnetic circular dichroism (XMCD), X-ray photoelectron spectroscopy (XPS)",

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

year = "2008",

month = jul,

doi = "10.1016/j.jmmm.2008.02.131",

language = "English (US)",

volume = "320",

pages = "1889--1892",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "13",

}

TY - JOUR

T1 - X-ray analysis of oxygen-induced perpendicular magnetic anisotropy in Pt / Co / AlOx trilayers

AU - Manchon, A.

AU - Pizzini, S.

AU - Vogel, J.

AU - Uhlíř, V.

AU - Lombard, L.

AU - Ducruet, C.

AU - Auffret, S.

AU - Rodmacq, B.

AU - Dieny, B.

AU - Hochstrasser, M.

AU - Panaccione, G.

PY - 2008/7

Y1 - 2008/7

N2 - 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 of the Co / AlOx interface. It is observed that high temperature annealing modifies the magnetic properties of the Co layer, inducing an enhancement of the perpendicular magnetic anisotropy. The microscopic structural properties are analyzed via X-ray Absorption Spectroscopy, X-ray Magnetic Circular Dichroism and X-ray Photoelectron Spectroscopy measurements. It is shown that annealing enhances the amount of interfacial oxide, which may be at the origin of a strong perpendicular magnetic anisotropy.

AB - 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 of the Co / AlOx interface. It is observed that high temperature annealing modifies the magnetic properties of the Co layer, inducing an enhancement of the perpendicular magnetic anisotropy. The microscopic structural properties are analyzed via X-ray Absorption Spectroscopy, X-ray Magnetic Circular Dichroism and X-ray Photoelectron Spectroscopy measurements. It is shown that annealing enhances the amount of interfacial oxide, which may be at the origin of a strong perpendicular magnetic anisotropy.

KW - Magnetic tunnel junctions

KW - Perpendicular magnetic anisotropy

KW - X-ray absorption spectroscopy (XAS)

KW - X-ray magnetic circular dichroism (XMCD)

KW - X-ray photoelectron spectroscopy (XPS)

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U2 - 10.1016/j.jmmm.2008.02.131

DO - 10.1016/j.jmmm.2008.02.131

M3 - Article

AN - SCOPUS:42749085133

SN - 0304-8853

VL - 320

SP - 1889

EP - 1892

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 13

ER -