Beeck, T., Baev, I., Chen, K., Palutke, S., Wurth, W. and Martins, M. (2016). Quantum size effects of small, size-selected and deposited CoRh clusters on Ni. New J. Phys., 18. BRISTOL: IOP PUBLISHING LTD. ISSN 1367-2630
Full text not available from this repository.Abstract
The electronic, chemical and magnetic properties of in situ prepared, mass-selected and deposited CoxRhy alloy clusters with up to five atoms per cluster have been studied by means of x-ray absorption and x-ray magnetic circular dichroism spectroscopy. The clusters were supported on a remanently magnetized Ni film. The cluster properties exhibit strong size and composition dependent effects. By alloying of pure Co-1,Co-2 adatoms and dimers with Rh the chemical reactivity towards oxygen is significantly enhanced for specific compositions. The oxidation of the alloyed clusters strongly affects the magnetic properties which results in a reduction of the orbital and spin magnetic moments. The exchange coupling between the oxidized Co atoms and the Ni surface exhibits a size and a composition dependent oscillation between antiferromagnetic and ferromagnetic coupling.
| Item Type: | Journal Article | ||||||||||||||||||||||||||||
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| URN: | urn:nbn:de:hbz:38-255885 | ||||||||||||||||||||||||||||
| DOI: | 10.1088/1367-2630/18/11/113007 | ||||||||||||||||||||||||||||
| Journal or Publication Title: | New J. Phys. | ||||||||||||||||||||||||||||
| Volume: | 18 | ||||||||||||||||||||||||||||
| Date: | 2016 | ||||||||||||||||||||||||||||
| Publisher: | IOP PUBLISHING LTD | ||||||||||||||||||||||||||||
| Place of Publication: | BRISTOL | ||||||||||||||||||||||||||||
| ISSN: | 1367-2630 | ||||||||||||||||||||||||||||
| Language: | English | ||||||||||||||||||||||||||||
| Faculty: | Unspecified | ||||||||||||||||||||||||||||
| Divisions: | Unspecified | ||||||||||||||||||||||||||||
| Subjects: | no entry | ||||||||||||||||||||||||||||
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| Refereed: | Yes | ||||||||||||||||||||||||||||
| URI: | http://kups.ub.uni-koeln.de/id/eprint/25588 |
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