Abstract
We performed x-ray holography experiments using synchrotron radiation. By analyzing the scattering of coherent circularly polarized x-rays tuned at the Co-2p resonance, we imaged perpendicular magnetic domains in a Co/Pd multilayer. We compare results obtained for continuous and laterally confined films.
Highlights
Perpendicular magnetic anisotropy (PMA) is one of the properties that are sought for when manufacturing artificially structured magnetic materials
In this paper we show how perpendicular magnetic domains in nanostructured Co/Pd multilayers can be imaged by a holographic technique based on resonant scattering of coherent soft x-rays
We have used x-ray holography for imaging perpendicular magnetic domains in a Co/Pd multilayer, comparing results obtained for the continuous film and for laterally confined objects
Summary
Perpendicular magnetic anisotropy (PMA) is one of the properties that are sought for when manufacturing artificially structured magnetic materials. A careful choice of the parameters makes it possible to prepare alloys or multilayer structures displaying PMA. In these systems, perpendicular magnetization is often accompanied by regular domain structures which display, at remanence, sub-micron characteristic length scales. Perpendicular magnetization is often accompanied by regular domain structures which display, at remanence, sub-micron characteristic length scales These domain structures can be controlled, for instance, by applying an in-plane field or by varying the temperature. Knowledge of the response of the local magnetization to the action of a short magnetic pulse or of an ultra-fast local heating is of fundamental importance for envisaging applications. In this paper we show how perpendicular magnetic domains in nanostructured Co/Pd multilayers can be imaged by a holographic technique based on resonant scattering of coherent soft x-rays
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