Jun
Photons meeting: Soft X-ray Ptychography – A Versatile Microspectroscopic Technique
On this NanoLund Photons meeting, Tim Alexander Butcher from Paul Scherrer Institute will give a talk titled “Soft X-ray Ptychography – A Versatile Microspectroscopic Technique”. Welcome!
Abstract:
X-ray microscopy at the L-edges of 3d transition metals and M-edges of the rare earths, which lie in the soft X-ray energy range, allow chemical and magnetic characterisation of numerous technologically relevant materials. The visualisation of magnetic or ferroelectric textures is enabled by dichroic contrasts with circularly or linearly polarised X-rays. Scanning transmission X-ray microscopy (STXM) has become well established at synchrotron light sources, but the coherent diffractive imaging method of ptychography is necessary to unlock spatial resolutions below 10 nm. This technique is well suited to study ferroic orders in nanoparticles or thin films of materials such as the room temperature multiferroic bismuth ferrite (BiFeO3) [1]. An overview of results from the new endstation SOPHIE (Soft X-ray Ptychography Highly Integrated Endstation) at the Swiss Light Source and currently at the SoftiMAX beamline at MAX IV will be given.
[1] T. A. Butcher et al. Adv. Mater. 36, 23 (2024); https://doi.org/10.1002/adma.202311157
About the event
Location:
K457, Seminar room at Synchrotron Radiation
Contact:
jesper [dot] wallentin [at] sljus [dot] lu [dot] se