Mascaraque Susunaga, ArantzazuAballe, LucíaMarco, J. F.Mentes, T. O.El Gabaly, F.Klein, C.Schmid, A. K.McCarty, K. F.Locatelli, A.Figuera, J. de la2023-06-202023-06-202009-111098-012110.1103/PhysRevB.80.172401https://hdl.handle.net/20.500.14352/44463© 2009 The American Physical Society. This research was partly supported by the U.S. Department of Energy under Contracts No. DE-AC04-94AL85000 and No. DE-AC02-05CH11231, by the Spanish Ministry of Education and Science under Project No. MAT2006-13149- C02-02, and by the Comunidad Autónoma de Madrid and the CSIC under Projects No. CCG07-CSIC-MAT-2030 and No. S-0505/MAT/0194.Co islands and films are characterized by x-ray magnetic circular dichroism photoemission electron microscopy. The spatial resolution capabilities 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 spectromicroscopy 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.engjournal articlehttp://dx.doi.org/10.1103/PhysRevB.80.172401http://journals.aps.org/open access538.9Co/Ru Strained superlatticesCircular-dichroismAnisotropyGrowthFísica de materiales