Abstract
We have studied the magnetic domain structure of epitaxially grown cobalt on Cu(100) by means of a scanning microscope with spin polarization analysis of the secondary electrons. In the ‘as grown’ state the films show a single domain configuration with small oppositely magnetized edge domains. Demagnetizing the films creates multi-domain structures. The domain structure and shape is qualitatively the same for all thicknesses studied (3–19.5 monolayers). The magnetization of the domains is aligned with the 〈110〉 in-plane directions. By comparing the spin polarization data to Kerr effect measurements we determine the ‘magnetic probing depth’ to be about 3 monolayers.
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