News : Condensed matter physics, chemistry & nanosciences

Redox photocatalysis is more and more popular in synthetic and pharmaceutical chemistry for preparing organic compounds is mild conditions. It aims to convert visible light absorbed by a photocatalyst into charges (electron and/or holes) with redox potentials well adapted for performing reduction and/or oxidation reactions. These reactions can be very efficient and enable the formation […] >>

In this subjet we will develop off-axis electron holography for the measurement of electrostatic fields in AlGaN quantum well structures for UV emission. Electron holography measures the phase of electrons from an interference pattern. As the phase change of the electrons is proportional to the potentiel in the specimen, then this can be used to […] >>

The SmartCut technology is nowdays widely used on the manufacture of innovative substrates such as SOI (Silicon-on-Insulator). The fundamental physical phenomena underlying this process are still being actively studied. In particular, the catastrophic fracture step, which allows the transfer of a very thin layer of a donor substrate onto a base or receiver substrate. An […] >>

As the performances of the transistor are approaching their physical limits, developing semiconductor technology with novel concepts and materials is a major focus of the microelectronics research and industry. In recent years, MOSFETs fabricated with semiconducting 2D transition metal dichalcogenide (TMD) channels have been identified as promising candidates to reach the ultimate gate length scaling, […] >>

This thesis focuses on the study of unconventional topological spin textures present in antiferromagnetic thin film materials. In the field of spintronics, spin correlations have attracted considerable attention, facilitating progress in fundamental physics and the development of new applications. Some effects, such as the topological Hall effect, are related to the specific local arrangement of […] >>