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arXiv · 0910.4687

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
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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.

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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. 2009-10-24. Measuring the magnetization of three monolayer thick Co islands and films by X-ray dichroism. https://doi.org/10.1103/physrevb.80.172401

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