Regensburg 2025 – scientific programme
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MA: Fachverband Magnetismus
MA 15: Poster I
MA 15.19: Poster
Tuesday, March 18, 2025, 10:00–12:30, P1
Bright days ahead - Soft X-ray scanning microscopy at 4th generation lightsources — •Simone Finizio1, Tim Butcher1,2, Lars Heller1, Benjamin Watts1, Blagoj Sarafimov1, Mirko Holler1, and Jörg Raabe1 — 1Paul Scherrer Institut, Villigen PSI, Switzerland — 2Max-Born-Institut, Berlin, Germany
Diffraction limited synchrotron (DLSR), or 4th generation, light sources are now delivering an increase in the coherent photon flux of several orders of magnitude compared to the current 3rd generation storage ring design, revolutionizing synchtrotron-based experiments.
For scanning transmission X-ray microscopy (STXM), the increase in coherent photon flux will allow us to routinely perform high-resolution imaging, as it will tackle all the issues occurring for high-resolution X-ray optics. In addition, the combined increase in coherent photon flux, in the available (GPU) computational power, and in the performances of 2D soft X-ray detectors will also enable for the routine performing of high-resolution soft X-ray ptychographic imaging.
In this presentation, we will show the current status of the commissioning of a new combined STXM and soft X-ray ptychography endstation at the SoftiMAX beamline of the MaxIV DLSR, and the first results in the ptychographic imaging of the magneto-electric coupling between ferroelectric domains and spin cycloid in freestanding BiFeO3 thin films, which fully exploit the sub-5nm spatial resolutions achievable with the technique.
Keywords: Ptychography; Diffraction limited storage rings; Scanning Transmission X-ray Microscopy