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Phys Rev Lett. 2011 Jul 15;107(3):033904. Epub 2011 Jul 14.

X-ray diffraction microscopy of magnetic structures.

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Linac Coherent Light Source, SLAC National Laboratory, Menlo Park, California, USA.


We report the first proof-of-principle experiment of iterative phase retrieval from magnetic x-ray diffraction. By using the resonant x-ray excitation process and coherent x-ray scattering, we show that linearly polarized soft x rays can be used to image both the amplitude and the phase of magnetic domain structures. We recovered the magnetic structure of an amorphous terbium-cobalt thin film with a spatial resolution of about 75 nm at the Co L3 edge at 778 eV. In comparison with soft x-ray microscopy images recorded with Fresnel zone plate optics at better than 25 nm spatial resolution, we find qualitative agreement in the observed magnetic structure.

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