The complex ground states of recently discovered two-dimensional (2D) magnets with Curie temperatures near room temperature present exciting opportunities for functional spintronic devices, but remain poorly understood. We investigate the electronic and magnetic excitations in the van der Waals ferromagnet Fe5GeTe2 (Tc=300K) using angle-resolved photoemission spectroscopy (ARPES) and resonant...
PolSpecX [1] is an integrated software tool designed for the simulation and analysis of X-ray magnetic circular dichroism (XMCD) and X-ray magnetic linear dichroism (XMLD) spectra of 3d transition metal elements at the L₂ and L₃ absorption edges. Leveraging the capabilities of Quanty [2-4] for multiplet calculations, PolSpecX enables accurate theoretical modelling of dichroic spectra under...
ABSTRACT
The Beamline for Advanced Dichroism Experiments delivers a soft X-ray beam in the 0.4–1.6 keV energy range. The availability of all polarisation states, combined with the pronounced dichroic effects characteristic of the soft X-ray regime, has facilitated advanced research on magnetism in novel nanostructured systems. The beamline features two endstations, scattering and absorption,...
Metal-Insulator transitions are among the most active topics in condensed matter physics. The electronic transition takes place concomitantly with a structural transition, making it hard to disentangle the underlying mechanism. Two scenarios are possible and are at the core of an unresolved and longstanding debate: i) the transition is driven by purely electronic interactions or ii) it is...
At PETRA III at DESY, at beamline P09, two experimental stations are dedicated to resonant X-ray diffraction (REXS), each one equipped with different diffractometers to accomodate either light- or heavy-weight sample environments. Low temperature experiments can be performed in combination with either magnetic fields up to 14 T or high pressure until 20 GPa allowing it to investigate a...
We provide a comprehensive overview of our current line of detectors designed for soft-X-ray detection in synchrotron and laser science. We will cover a variety of detector types, including streak cameras and sCMOS cameras, highlighting their respective performance metrics, integration capabilities, and use cases in synchrotron beamlines, and laboratory setups. We also discuss recent...
In synthetic antiferromagnetic multilayers (SAFs), chiral magnetic structures such as spin spirals and skyrmions have been stabilized at room temperature by precisely tuning the effective perpendicular magnetic anisotropy, the Dzyaloshinskii-Moriya interaction, and the Ruderman-Kittel-Kasuya-Yoshida (RKKY) interlayer coupling [1-3]. In this study, we investigate the dynamics of chiral spin...
Magnetic stripe domains have interesting properties, like unidimensional periodicity and rotatable anisotropy [1], which makes them suitable for spintronics applications like reconfigurable spin wave guides [2] or domain wall racetracks [3]. The understanding of the mechanisms that permit these kinds of applications requires a complete characterization of the magnetic stripes. X ray Resonant...
