Institut des
NanoSciences de Paris

Thesis defense - Sylvain Shihab - Tuesday 15 december 2015 at 2 pm

UPMC - 4 place Jussieu - 75252 PARIS Cedex 05
IMPMC - Tower 22-23, 4th floor

Sylvain Shihab, team Nanostructures and Quantum Systems

« Optical excitation and detection processes of the magnetization dynamics in the magnetic semi-conductor (Ga,Mn)(As,P) »



The developpement of impulsional laser enhanced the study of the magnetization dynamic in the temporal domain (fs-ns) by the mean of optical techniques. In thin ferromagnetic films with a weak optical absorption, excitation and optical mechanisms are not yet fully understood. To increase our understanding, fully controlled variation of magnetic parameters are required. To that end, the magnetic semiconductor like (Ga,Mn)(As,P) are a good choice due to their magnetic properties easily adjustable thanks to the coupling between magnetic and semiconductor properties. During the defense, I’ll present you my work on the excitation and detection process in (Ga,Mn)(As,P) and how we assess them.

Composition of jury

  • Matthieu Bailleul, IPCMS Strasbourg (protractor)
  • Catherine Gourdon, INSP Paris (thesis director)
  • Xavier Marie, INSA Toulouse (protractor)
  • Alexandra Mougin, LPS Saclay (examinator)
  • Laura Thevenard, INSP Paris (co-encadrante de thèse)
  • Jérôme Tignon, LPA Paris (examinator)