The role of preoxidation on the interface structure of Co/MgO multilayers

David S. Eastwood; William F. Egelhoff; Brian K. Tanner

The role of preoxidation on the interface structure of Co/MgO multilayers

David S. Eastwood, William F. Egelhoff, Brian K. Tanner

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

Abstract

It has previously been reported that preoxidation of the bottom electrode prior to deposition of the Al2 O3 or MgO barrier in magnetic tunnel junctions acts to suppress orange-peel coupling between Co electrodes. Here, we present specular and diffuse X-ray scattering measurements from Co/MgO multilayer repeat structures which suggest that this drop arises from a reduction in the in-plane correlation length of the roughness at the electrode-barrier interface rather than reduction in roughness amplitude. © 2008 IEEE.

Original language	English
Pages (from-to)	3594-3596
Number of pages	2
Journal	Ieee Transactions on Magnetics
Volume	44
Issue number	11
Publication status	Published - Nov 2008

Keywords

Grazing incidence X-ray scattering
Multilayers
Orange-peel coupling
Preoxidation

Cite this

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title = "The role of preoxidation on the interface structure of Co/MgO multilayers",

abstract = "It has previously been reported that preoxidation of the bottom electrode prior to deposition of the Al2 O3 or MgO barrier in magnetic tunnel junctions acts to suppress orange-peel coupling between Co electrodes. Here, we present specular and diffuse X-ray scattering measurements from Co/MgO multilayer repeat structures which suggest that this drop arises from a reduction in the in-plane correlation length of the roughness at the electrode-barrier interface rather than reduction in roughness amplitude. {\textcopyright} 2008 IEEE.",

keywords = "Grazing incidence X-ray scattering, Multilayers, Orange-peel coupling, Preoxidation",

author = "Eastwood, {David S.} and Egelhoff, {William F.} and Tanner, {Brian K.}",

year = "2008",

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language = "English",

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journal = "IEEE Transactions on Magnetics Mag",

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T1 - The role of preoxidation on the interface structure of Co/MgO multilayers

AU - Eastwood, David S.

AU - Egelhoff, William F.

AU - Tanner, Brian K.

PY - 2008/11

Y1 - 2008/11

N2 - It has previously been reported that preoxidation of the bottom electrode prior to deposition of the Al2 O3 or MgO barrier in magnetic tunnel junctions acts to suppress orange-peel coupling between Co electrodes. Here, we present specular and diffuse X-ray scattering measurements from Co/MgO multilayer repeat structures which suggest that this drop arises from a reduction in the in-plane correlation length of the roughness at the electrode-barrier interface rather than reduction in roughness amplitude. © 2008 IEEE.

AB - It has previously been reported that preoxidation of the bottom electrode prior to deposition of the Al2 O3 or MgO barrier in magnetic tunnel junctions acts to suppress orange-peel coupling between Co electrodes. Here, we present specular and diffuse X-ray scattering measurements from Co/MgO multilayer repeat structures which suggest that this drop arises from a reduction in the in-plane correlation length of the roughness at the electrode-barrier interface rather than reduction in roughness amplitude. © 2008 IEEE.

KW - Grazing incidence X-ray scattering

KW - Multilayers

KW - Orange-peel coupling

KW - Preoxidation

M3 - Article

VL - 44

SP - 3594

EP - 3596

JO - IEEE Transactions on Magnetics Mag

JF - IEEE Transactions on Magnetics Mag

SN - 0018-9464

IS - 11

ER -

The role of preoxidation on the interface structure of Co/MgO multilayers

Abstract

Keywords

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