X-Ray Diffraction Microscopy of Magnetic Structures

Abstract : 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 L 3 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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Joshua Turner, Xiaojing Huang, Oleg Krupin, Keoki Seu, Daniel Parks, et al.. X-Ray Diffraction Microscopy of Magnetic Structures. Physical Review Letters, American Physical Society, 2011, 107 (3), pp.033904. ⟨10.1103/PhysRevLett.107.033904⟩. ⟨hal-02086100⟩

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