Magnetic REXS (RMXS) has been used for many years as a complementary tool to neutron scattering for the determination of magnetic structures. Although limited in many cases by the small size of the Ewald sphere, RMXS has two great advantages over neutron scattering: firstly, an exquisite control of the incident and scattered polarisation, analogous to neutron spherical polarimetry (NSP) but...
Non-colinear spin structures have gained interest due to their connection to multiferroicity. One of most well-known examples of such materials is the helical antiferromagnetic Holmium. The occurrence of domain-wall fluctuations over a wide range of time scales has been observed [1]. These fluctuations show a slow dynamic on the order of nanoseconds to seconds and are important to understand...
High-Tc superconductors represent one of the most intriguing challenges of condensed matter physics. Over the years, plenty of effort has been devoted to address two fundamental questions: What is the microscopic mechanism for superconductivity and how can the superconducting transition temperature be elevated?
Although these questions remain still unanswered, it has been revealed that in...
The discovery of high-temperature superconductivity in La3Ni2O7 under has motivated the investigation of parent or competing phases which could shed light on the underlying pairing interaction and phase diagram. Here, we employ resonant elastic and inelastic soft x-ray scattering and polarimetry on thin films of bilayer La3Ni2O7 to reveal the existing of a spin density wave (SDW) which forms...
Resonant elastic small-angle soft x-ray scattering (SAXS) is a unique and powerful tool that offers ultimate reciprocal-space resolution, enabling the study of long-periodic spin textures in noncentrosymmetric magnets. Its distinctive sample environment facilitates the exploration of previously uncharted spin texture transformations and allows for the extraction of small parameters that are...
: In the centre of our here presented work was the Heusler compound Mn1.4PtSn characterized by anisotropic DMI and known to host various chiral spin textures. In this study, we employed a combination of REXS and micromagnetic simulations to reveal distinct features consistent with a fan-like [1] spin structure and its field driven evolution under increasing in-plane magnetic fields. Starting...
