Laboratory
Laboratoire de Physique des Solides
UMR8502,
Bâtiment 510, Université Paris-Saclay
91405 Orsay
Team Leader
Mathieu KOCIAK
Permanant members
Amato Michele
Blazit Jean-denis
Bocher Laura
Brun Nathalie
Colliex Christian
De Frutos Marta
Galvão-Tizei Luiz
Gloter Alexandre
Kociak Mathieu
Li Xiaoyan
Stéphan Odile
Tencé Marcel
Walls Mike
Zobelli Alberto
Scientific activity
We use low free-electron spectromicroscopy techniques in transmission electron microscopes to determine, ultimately on an atomic to atomic scale, the structure, electronic properties and optical properties of various quantum materials. These range from element-III nitride quantum wells and photonic cavities to point defects in van der Walls materials and transition metal oxides. The spectroscopies used are essentially electronic energy loss spectroscopy, energy gain spectroscopy and cathodoluminescence. Compared with macroscopic techniques, these are particularly useful for studying inhomogeneities in physical properties on the nanometric scale, possibly correlated with structural variations (defects, interfaces, etc.) on the atomic scale.