Category Archives: research

Phd Position at SIMaP

SIMaP

Computational study of MOFs for an efficient carbon capture Applications are invited for a fully funded 3-years PhD position to work on the electronic structure modeling of porous coordination polymers starting on October 1st 2017 and funded by the ANR ComputationalCarbonCapture. We propose to design novel families of MOFs whose high affinity for CO2 can… Read More

Modeling excitons in bulk and single-layer hBN

hBN_eels

New paper on excitations in hexagonal Boron-Nitride. Core and low energy electronic excitations have been studied in hexagonal boron nitride by means of angular resolved electron energy loss spectroscopy and theoretical calculations. Paper: Angular resolved electron energy loss spectroscopy in hexagonal boron nitride Poster: Modeling excitons in bulk and single-layer hBN

What is the nature of the C-C complex in silicon? Insights from electronic structure calculations

cc complex defect in silicon

In this work we studied the C-C defect complex in silicon. We used different approaches in such a way to identity the defect configuration responsible for the strong light emission in irradiated silicon. Our clues point towards a particular configuration, even if we suspect that in a damaged sample different type of complexes could be… Read More

Optical properties of extended systems within a current-current response formalism: tips and tricks

velocityposter

In this work we compare the optical absorption of extended systems calculated starting from the density-density and current-current linear response formalisms within the equilibrium many-body perturbation theory(MBPT). We show how, using the latter, one can incur in errors due to quasiparticle lifetimes, electron-hole interaction or the presence of a Drude tail. These errors are found… Read More

Many-body perturbation theory for electronic and optical properties of organic systems

manybody_for_chemistry

My new talk on Many-Body Perturbation Theory (MBPT) in chemistry is online. If you want to know what MBPT can do in finite systems have a look to this talk. There is an historical introduction and then I discuss different approximations as GW, BSE and present applications in organic chemistry. More recent progresses are presented… Read More

My thesis for the Habilitation à Diriger des Recherches

Habilitation à Diriger des Recherches

The first draft of my  thesis for the accreditation to direct research (Habilitation à Diriger des Recherches) is available online. The thesis covers my studies of the non-linear response in solids and nanostructures by means of real-time simulations.  In the thesis I discuss how to couple electrons and external fields by means of Modern Theory… Read More

New poster on real-time DPFT

dftp_poster

A new poster on our work on real-time density polarization functional theory. In presence of a time-dependent macroscopic electric field the electron dynamics of dielectrics cannot be described by the time-dependent density only. We present a real-time formalism that has the density and the macroscopic polarization P as key quantities. We show that a simple… Read More

Post-doctoral position : “Optical properties of 2D materials”( within the framework of the E.U. Graphene flagship)

postdoc1-470x260

A 18 month post-doctoral position is available, from September 1st 2016, at the “Laboratoire d’Etude des Microstructures” (http:// http://lem.onera.fr/) in strong collaboration with the “Centre Interdisciplinaire de Nanoscience de Marseille” (http://www.cinam.univ-mrs.fr/), as part of the European Union Graphene Flagship project (http://graphene-flagship.eu/). Since graphene takeoff in the 2000’s, the field of two-dimensional systems has been gradually… Read More