Studies pf physics in University of Freiburg, Germany, and Université Paris Sud, France. Ph.D. thesis at Ecole Polytechnique, Condensed Matter Physics Laboratory, 1994-1997. Postdoctoral fellow at Northeastern University, Boston, USA, 1997-1999 Permanent staff member with Centre National de la Recherche Scientifique since 1999. Assisitant Professor wth the Physics Department of Ecole Polytechnique since 2006.