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Research

Grafikado highlight Wutke 2DEG

Research on two-dimensional electron gas (2DEG) formed on a tellurium-passivated InAs(110) surface

12.06.2023
Researchers from the Faculty of Physics, Jagiellonian University, in close collaboration with URANOS scientists, have studied a two-dimensional electron gas (2DEG) formed on a tellurium-passivated InAs(110) surface. High-resolution ARPES measurements have been performed as a function of temperature and 2DEG sheet density, to study the many-body interactions within the 2DEG. The band shapes and their widths have been discussed in detail.
Read More o Research on two-dimensional electron gas (2DEG) formed on a tellurium-passivated InAs(110) surface
Grafikado highlight Wutke 2DEG

Electronic structure studies of Chiral Quantum Materials.

29.05.2023
Led by Professor Antonio Politano from the University of L’Aquila, Italy the team together with beamline scientists from URANOS beamline has identified and characterized a new chiral material, CdAs2, which exhibits a rare Kramers-Weyl fermion. Chirality, which refers to the asymmetry in the spatial arrangement of molecules, plays a crucial role in a wide range of scientific fields, including biochemistry and materials science. Chiral crystals exhibit well-defined handedness due to the breaking of inversion, mirror, or any other roto-inversion symmetries.
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Mechanism of a key protein complex in bacterial homologous recombination.

24.05.2023
Scientists from the Laboratory of Protein Structure at the International Institute of Molecular and Cell Biology in Warsaw explained the mechanism of a key protein complex in bacterial homologous recombination.
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Molecular mechanism of a potent antibiotic produced by a sugarcane pathogen

26.04.2023
Albicidin is extremely potent bactericidal antibiotic active against problematic Gram-negative bacteria however its mechanism of action was not understood at the molecular level. Now, a collaborative research team of Polish, German and British scientists used cryo-electron microscopy facility at SOLARIS to determine structure of albicidin bound to the Escherichia coli DNA gyrase complexed with 217 double-stranded DNA fragment.
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Surface and interface properties of TiO2/CuO thin film bilayers

12.04.2023
Thin films, particularly in a form of bilayer, are emerging as potential photocatalysts and photoelectrodes but the challenging aspect consists in the technology and investigation of the interface between both constituents. Thin film bilayers of TiO2/CuO were prepared by means of sequential reactive magnetron sputtering (Figure 1a) in Ultra-High Vacuum (UHV) system. It was demonstrated that under certain conditions both X-ray reflectivity XRR and optical reflectivity measurements can provide information concerning the interfacial properties. X-ray absorption spectroscopy XAS in the surface sensitive mode, i.e., Total Electron Yield TEY, was carried out at SOLARIS centre and allowed to draw conclusions concerning the oxidation state of copper and the electronic structure of the grown materials.
Read More o Surface and interface properties of TiO2/CuO thin film bilayers