SKM 2023 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 43: Magnetic Imaging Techniques II

MA 43.3: Vortrag

Donnerstag, 30. März 2023, 15:30–15:45, HSZ 401

Soft X-ray Ptychography of Bismuth Ferrite Nanoplates — •Tim A. Butcher¹, Manuel Langer¹, Simone Finizio¹, Lars Heller¹, Mirko Holler¹, Michal Jambor², Elisabeth Müller³, Ashna Bajpai^{4, 5}, Carlos A. F. Vaz¹, Armin Kleibert¹, and Jörg Raabe¹ — ¹Swiss Light Source, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland — ²Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, 61600 Brno, Czech Republic — ³Electron Microscopy Facility, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland — ⁴Department of Physics, Indian Institute of Science Education and Research, Pune 411008, India — ⁵Centre for Energy Science, Indian Institute of Science Education and Research, Pune 411008, India

Soft x-ray ptychography is a scanning coherent diffractive imaging technique with spatial resolutions in the order of 10 nm, which relies on collecting diffraction patterns from overlapping illumination spots of the sample. The magnetic and ferroelectric structure of multiferroic bismuth ferrite nanoplates was studied with a new soft x-ray ptychography endstation at the Swiss Light Source. In particular, we demonstrate that the technique is able to resolve the antiferromagnetic spin cycloid and can yield the chirality in bismuth ferrite.