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Ab Initio Investigation of a CoFeB/MgO/CoFeB Interface

Published online by Cambridge University Press:  01 February 2011

Helder Sousa Domingos  and
José Julio Martins
Helder Sousa Domingos
Affiliation:
hdomingos@inesc-mn.pt, INESC-MN, Micro and nanotechnologies, Rua Alves Redol 9, Lisbon, 1000-029, Portugal, +351-21-3100237, +351-21-3145843
José Julio Martins
Affiliation:
hdomingos@inesc-mn.pt, INESC-MN, Micro and nanotechnologies, Rua Alves Redol 9, Lisbon, 1000-029, Portugal, +351-21-3100237, +351-21-3145843
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Abstract

We have carried out density functional calculations on a CoFeB/MgO/CoFeB interface with amorphous electrodes. The interface was shown to be stable with 4 mono-layers (ML) and to contain spin-polarized metal-oxigen bonds at the interface. The interfacial energy was estimated, to be used as a comparative measure of stability. In addition, the exchange-coupling indicated a favouring of the anti-paralell magnetization configuration with respect to the paralell for 4 ML.

Keywords

magnetoresistance (magnetic)nanostructurespintronic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 961: Symposium O – Nanostructured and Patterned Materials for Information Storage , 2006 , 0961-O12-02
Copyright
Copyright © Materials Research Society 2007

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References

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