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19 April 2024

» arxiv » 0910.4687

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Measuring the magnetization of three monolayer thick Co islands and films by X-ray dichroism
A. Mascaraque ; L. Aballe ; J. F. Marco ; T. O. Mentes ; F. El Gabaly ; C. Klein ; A. K. Schmid ; K. F. McCarty ; A. Locatelli ; J. de la Figuera ;
Date:	25 Oct 2009
Abstract:	Co islands and films are characterized by x-ray magnetic circular dichroism photoemission electron microscopy (XMCD-PEEM). The spatial resolution capabilties of the technique together with atomic growth control permit obtaining perfectly flat triangular islands with a given thickness (3 ML), very close to an abrupt spin-reorientation transition. The magnetic domain configurations are found to depend on island size: while small islands can be magnetized in a single-domain state, larger islands show more complex patterns. Furthermore, the magnetization pattern of the larger islands presents a common chirality. By means of dichroic spectro-microscopy at the Co L absorption edges, an experimental estimate of the ratio of the spin- and orbital magnetic moment for three monolayer thick films is obtained.
Source:	arXiv, 0910.4687
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