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X-Ray Analysis of Oxygen-induced Perpendicular Magnetic Anisotropy in Pt/Co/AlOx trilayer

Authors :
Aurélien Manchon
Stefania Pizzini
Jan Vogel
Vojtech Uhlir
Lucien Lombard
Clarisse Ducruet
Stéphane Auffret
Bernard Rodmacq
Bernard Dieny
Michael Hochstrasser
Giancarlo Panaccione
SPINtronique et TEchnologie des Composants (SPINTEC)
Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG)
Direction de Recherche Fondamentale (CEA) (DRF (CEA))
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA))
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
Micro et NanoMagnétisme (NEEL - MNM)
Institut Néel (NEEL)
Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)
Institute of Physical Engineering
Brno University of Technology [Brno] (BUT)
Laboratory for Solid State Physics
Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich)
Laboratory TASC
INFM-CNR
Micro et NanoMagnétisme (MNM)
Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)
Source :
HAL, Journal of Magnetism and Magnetic Materials, Journal of Magnetism and Magnetic Materials, 2008, 320 (13), pp.1889-1892. ⟨10.1016/j.jmmm.2008.02.131⟩, Journal of Magnetism and Magnetic Materials, Elsevier, 2008, 320 (13), pp.1889-1892. ⟨10.1016/j.jmmm.2008.02.131⟩
Publication Year :
2007

Abstract

International audience; 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.

Subjects

Subjects :
Condensed Matter - Materials Science
75.47.-m,75.70.Cn,72.25.Ba,73.20.-r,73.40.Rw
Condensed Matter - Mesoscale and Nanoscale Physics
Materials Science (cond-mat.mtrl-sci)
FOS: Physical sciences
X-ray photoelectron spectroscopy (XPS)
Condensed Matter::Materials Science
X-ray magnetic Circular Dichroism (XMCD)
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
X-ray Absorption spectroscopy (XAS)
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
Perpendicular Magnetic Anisotropy
Magnetic Tunnel Junctions
[PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]

Details

Language :
English
ISSN :
03048853
Database :
OpenAIRE
Journal :
HAL, Journal of Magnetism and Magnetic Materials, Journal of Magnetism and Magnetic Materials, 2008, 320 (13), pp.1889-1892. ⟨10.1016/j.jmmm.2008.02.131⟩, Journal of Magnetism and Magnetic Materials, Elsevier, 2008, 320 (13), pp.1889-1892. ⟨10.1016/j.jmmm.2008.02.131⟩
Accession number :
edsair.doi.dedup.....468ab7dae32c3b3ec0b2a7877024f4e2
Full Text :
https://doi.org/10.1016/j.jmmm.2008.02.131⟩
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