Publication Charges

Time-resolved X-ray absorption spectroscopy(TRXAS) at the Co L3-edge was used to identify metal-centered(MC) character in the S1 excited state of cyanocobalamin (CNCbl).Cobalamins have UV/visible spectra that are dominated by intensecorrin-based excitations, but these ligand-centered states energeti-cally overlap with charge transfer and MC excited states that may bepopulated following photoexcitation. Ultrafast optical and hard X-ray spectroscopy have shown that CNCbl forms a structurallydistorted S1 state, but these probes lack a clear signature of the S1electronic identity, which theory has suggested is a ligand-to-metalcharge transfer (LMCT) state. [...]

In this article, we present the experimental protocol and data-pro­ces­sing framework for megahertz X-ray Photon Correlation Spectroscopy (MHz-XPCS) experiments on soft matter samples implemented at the Materials Imaging and Dynamics (MID) instrument of the European X-ray Free-Electron Laser (EuXFEL). Due to the introduction of a standard con­fig­u­ra­tion and the implementation of a highly automated data-pro­ces­sing pipeline, MHz-XPCS measurements can now be conducted and analyzed with minimal user intervention [...]

Electrocatalyst degradation, often caused by oxidative processes, forms a large barrier for the wide-spread application of electrolysers and fuel cells, which are crucial for a sustainable energy society. A detailed understanding of the catalyst surface structure under oxygen evolution reaction (OER) conditions is, therefore, required to design more stable catalysts. [...]

Energy-transfer efficiency is an important quantity in plasma-wakefield acceleration, especially for applications that demand high average power. Conventionally, the efficiency is measured using an electron spectrometer, an invasive method that provides an energy-transfer efficiency averaged over the full length of the plasma accelerator. [...]

Cultural heritage objects are challenging from a materials science perspective: sometimes heterogeneous, multi-phase or layered, partly extremely sensitive to radiation, and at the same time unique and irreplaceable, which severely limits sampling and measurement repetition. Non-destructive, non-invasive (or minimally invasive) techniques are therefore preferred. [...]

Cosmological first order phase transitions are a frequent phenomenon in particle physics beyond the Standard Model, and the corresponding gravitational wave signal offers a key probe of new physics in the early Universe. Depending on the underlying microphysics, the transition can exhibit either direct or inverse hydrodynamics, leading to a different phenomenology. [...]

The tracking system of the ATLAS experiment will be upgraded for the upcoming High-Luminosity Upgrade of the LHC (HL-LHC). The main building blocks of the new strip tracker aresilicon-strip modules that consist of a sensor and hybrid PCB’s. [...]

Probing nanoscale transport in liquids under extreme thermodynamic conditions is essential for understanding soft matter and nanomaterials. However, accessing intrinsic microsecond dynamics of nanometre-sized objects remains challenging for synchrotron-based X-ray photon correlation spectroscopy (XPCS) because of limitations of coherent flux and detector repetition rates [...]