Nanoscaled Systems and Structures : Optical, Electronic, and Magnetic Properties
Scientific projects and objectives
The research of our group, Nanoscaled Systems and Structures : Optical, Electronic, and Magnetic Properties (S2N-POEM), is focused on a multi-scale (atomic, nanoscopic, and molecular) study of intrinsic as well as collective phenomena, both in equilibrium and out of equilibrium, of nanostructures. Our work comprises two closely connected workpackages :
- Development of models and general techniques, microscopic and macroscopic, classical and quantum-mechanical, at equilibrium and out of equilibrium,
- Applications :
- Magnetization dynamics in nanoscale spin systems,
- Light-matter interaction and transport phenomena in nanostructures, absorption and conversion of solar spectrum.
Our research activities are led in close collaboration with experiments and aim at the development of workable models and techniques that are adapted to the investigation of nanoscale spin systems. Our approaches take into account i) the intrinsic properties of the nano-object pertaining to its size, internal crystal structure, and its surface/interface, and ii) the collective properties related with the short/long range interactions between the nano-objects, deposited on a substrate or embedded in a hosting matrix.
In addition to the now well known applications in the area of information storage on magnetic media, we are also interested in new routes for efficiently converting solar and electromagnetic energy.
The group S2N works on the following related and complementary topics :
- Development of analytical and numerical multi-scale techniques, from the atom to the bulk,
- Magnetization dynamics assisted by DC/AC fields, thermal fluctuations, or optical stimuli,
- Interpretation-modeling of spectra for characterizing electronic/magnetic properties by optical techniques,
- Interaction between nano-objects and their environment, heat transfer in nanostructures,
- Seeking new nano-structures for optimal conversion of solar and/or electromagnetic energy.
François VERNAY, PR2 UPVD, Team leader