We present a statistically motivated method to extract magnonic contrast from STXM-FMR measurement with microwave frequencies of the order of unit[10]{GHz}. With this method it is possible to generate phase and amplitude profiles with a spatial resolution of about unit[30]{nm} given by the STXM resolution, furthermore this method allows fo a rigoros transformation to reciprocal vec{k}-space, revealing vec{k}-dependent magnon properties.
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