DUCHAMP , Martial

A broad interest has been showed recently on the study of nanostructuring of thin films and surfaces obtained by low‐energy He plasma treatments and He incorporation via magnetron sputtering. In this paper spatially resolved electron energy‐loss spectroscopy (EELS) in a scanning transmission electron microscope (STEM) is used to locate and...

A broad interest has been showed recently on the study of nanostructuring of thin films and surfaces obtained by low‐energy He plasma treatments and He incorporation via magnetron sputtering. In this paper spatially resolved electron energy‐loss spectroscopy (EELS) in a scanning transmission electron microscope (STEM) is used to locate and...

As most of the scientific research fields, Electron Microscopy benefits from advances in Deep Learning approaches, especially for the segmentation of various phases or nanometric objects to be identified on experimental micrographs. Assisting the human operator helps to quantify large populations of objects evolving under dynamic conditions,...

Doping mechanisms of Mn in GaAs nanowires (NWs) that have been grown self-catalytically at 600 C by molecular beam epitaxy (MBE) are investigated using advanced electron microscopy techniques and atom probe tomography. Mn is found to be incorporated primarily in the form of non-magnetic tetragonal Ga0.82Mn0.18 nanocrystals in Ga catalyst...

In the very current context of global warming, we know that clouds play a beneficial role since they reflect part of the solar radiation out of our atmosphere. However, the basic mechanisms of cloud formation, although known (condensation of atmospheric water vapor on aerosols (particles) suspended in the air), are not fully understood and...

Correlating the microstructure of an energy conversion device to its performance is often a complex exercise, notably in solid oxide fuel cell research. Solid oxide fuel cells combine multiple materials and interfaces that evolve in time due to high operating temperatures and reactive atmospheres. We demonstrate here that operando environmental...