This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1209/0295-5075/80/17007 in citations.
Spin polarization at ferromagnet-insulator interface: The important role of stoichiometry in MgO/Fe(001)
Spin polarization at ferromagnet-insulator interface: The important role of stoichiometry in MgO/Fe(001)
The electronic structure of ferromagnet-insulator interfaces plays a key role in spin-dependent transport processes by determining the spin polarization of the tunneling charge carriers. Employing spin- polarized, angle-resolved photoelectron spectroscopy we studied the spin-resolved electronic stru...
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Personal Name(s): | Müller, M. |
---|---|
Matthes, F. / Schneider, C. M. | |
Contributing Institute: |
Elektronische Eigenschaften; IFF-9 JARA-FIT; JARA-FIT |
Published in: | epl, 80 (2007) S. 17007 |
Imprint: |
Les Ulis
EDP Sciences
2007
|
Physical Description: |
17007 |
DOI: |
10.1209/0295-5075/80/17007 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
EuroPhysics Letters : epl
80 |
Subject (ZB): | |
Publikationsportal JuSER |
The electronic structure of ferromagnet-insulator interfaces plays a key role in spin-dependent transport processes by determining the spin polarization of the tunneling charge carriers. Employing spin- polarized, angle-resolved photoelectron spectroscopy we studied the spin-resolved electronic structure in the model system MgO/Fe( 001) and observed a surprisingly multifaceted in. fluence of the MgO stoichiometry. In particular, oxygen-deficient MgO barriers are found to strongly enhance the interfacial spin polarization. The results highlight the important role of the specific nature of the oxygen bonding and its relevance for the tunnel magneto-resistance effect. Copyright (C) EPLA, 2007. |