Abstract

Up to recent years, synchrotron radiation facilities and free electron lasers were used as a tool for implementing magneto-x-ray spectroscopies in order to study magnetic phenomena and the properties of the magnetic materials. High order harmonic generation (HHG) arises as a new source to accomplish these studies [1], benefiting from free jitter between pump and probe beams, polychromaticity to probe various edges at the same time, and a few fs temporal resolution. Nevertheless, all the HHG-based techniques, used hitherto to evaluate magnetic dynamics, still have some drawbacks limiting clearly their potential for high level application. They require the application of elliptically polarized light (complex systems), samples with magnetic domains (only conceivable in a few materials), or specific reflection geometry of the set-up (restricting the information obtained about the sample).

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