The objectives of the physics group are to study the theoretical and experimental fundamental properties of advanced nanomaterials by state of the art developments in nanoscale instrumentation and numerical simulations.
We study thin layers, heterostructures and nanostructures (1D, 0D) of materials presenting high interest for technological breakthroughs in electronics, opto-electronics and nanotechnologies. We combine theoretical and experimental research in several directions :
- Growth and physics of heterostructures and isolated or self-assembled nanostructures (0D, 1D, 2D) of semiconductors
- STM and EFM spectroscopy of nanostructures
- Physics of surfaces, nanocrystals and semiconductor nanowires for nanoelectronics and photovoltaics
- Dynamics of organics or biomolecular molecules in interaction with surfaces
- Simulation of the electronic properties of high k-dielectrics and their growth on semiconductor surfaces
- Simulation of the propagation of acoustic and optical waves in micro and nanostuctured materials: photonics and phononics
- Picosecond acoustics: generation and detection of ultrafast acoustic pulses (~100 GHz) to study e.g. interfaces in nanostructured materials
On the theoretical side, we undertake multi-scale simulations using molecular dynamics, ab-initio (LDA) and semi-empirical (tight binding) calculations to predict the properties of nanostructures. On the experimental side, we develop scanning-probe microscopy in ultra-high vacuum and low temperatures (STM/STS, multi-probe STM, AFM/KPFM) in close link with the IEMN scanning-probe platform, and femtosecond lasers to generate short acoustic pulses in nanostructures. The group has access to the clean-room facility of IEMN (growth of materials, characterization, fabrication of electronic devices…).
The physics group is divided into five teams:
- Physics of Waves, Nanostructures and Interfaces (EPHONI),
- Electrostatics and Physics of Nanostructures,
- Physics of Nanostructures and Quantum Devices,
- NAMASTE : Computational Physics