| Issue |
EPL
Volume 81, Number 4, February 2008
|
|
|---|---|---|
| Article Number | 47004 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/81/47004 | |
| Published online | 18 January 2008 | |
Non-collinear magnetism of Cr nanostructures on
: First principles and experimental investigations
1
Institut für Festkörperforschung, Forschungszentrum Jülich - D-52425 Jülich, Germany
2
Universität Hamburg, Institut für Experimentalphysik - Luruper Chaussee 149, D-22761 Hamburg, Germany
Corresponding author: s.lounis@fz-juelich.de
Received:
2
July
2007
Accepted:
14
December
2007
A combined experimental, using the X-ray magnetic circular dichroism, and theoretical investigation, using the full-potential Korringa-Kohn-Rostoker (KKR) Green function method, is carried out to study the spin structure of small magnetic Cr adatom clusters on the surface of 3 monolayers of fcc Fe deposited on Cu(001). The exchange interaction between the different Cr adatoms as well as between the Cr atoms and the Fe atoms is of antiferromagnetic nature and of comparable magnitude, leading due to frustration to complex non-collinear magnetic configurations. The presence of non-collinear magnetic coupling obtained by ab initio calculations is confirmed by the experimental results.
PACS: 75.75.+a – Magnetic properties of nanostructures / 87.64.Ni – Optical absorption, magnetic circular dichroism, and fluorescence spectroscopy / 36.40.Cg – Electronic and magnetic properties of clusters
© EPLA, 2008
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