J
J. Mauchain
Researcher at University of Paris-Sud
Publications - 13
Citations - 732
J. Mauchain is an academic researcher from University of Paris-Sud. The author has contributed to research in topics: Surface states & Topological insulator. The author has an hindex of 11, co-authored 13 publications receiving 666 citations.
Papers
More filters
Journal ArticleDOI
Ultrafast surface carrier dynamics in the topological insulator Bi2Te3
M. Hajlaoui,E. Papalazarou,J. Mauchain,Gabriel Lantz,N. Moisan,Davide Boschetto,Zhigang Jiang,Ireneusz Miotkowski,Yong P. Chen,Amina Taleb-Ibrahimi,Luca Perfetti,Marino Marsi +11 more
TL;DR: It is found that the thermalization of the surface states is initially determined by interband scattering from the bulk conduction band, lasting for about 0.5 ps; this establishes a correlation between the nanoscale thickness of the bulk charge reservoir and the evolution of the ultrafast carrier dynamics in the surface Dirac cone.
Journal ArticleDOI
Ultrafast Surface Carrier Dynamics in the Topological Insulator Bi2Te3
M. Hajlaoui,E. Papalazarou,J. Mauchain,Gabriel Lantz,N. Moisan,Davide Boschetto,Zhigang Jiang,Ireneusz Miotkowski,Yong P. Chen,Amina Taleb-Ibrahimi,Luca Perfetti,Marino Marsi +11 more
TL;DR: In this paper, the authors studied the ultrafast evolution of the surface electronic structure of the topological insulator Bi(2)Te(3) following femtosecond laser excitation.
Journal ArticleDOI
Tuning a Schottky barrier in a photoexcited topological insulator with transient Dirac cone electron-hole asymmetry
Mahdi Hajlaoui,E. Papalazarou,J. Mauchain,Luca Perfetti,Amina Taleb-Ibrahimi,Fabien Navarin,Miguel Monteverde,Pascale Auban-Senzier,Claude Pasquier,N. Moisan,Davide Boschetto,Madhab Neupane,M. Z. Hasan,Tomasz Durakiewicz,Zhigang Jiang,Yang Xu,Ireneusz Miotkowski,Yong P. Chen,Shuang Jia,Huiwen Ji,Robert J. Cava,Marino Marsi +21 more
TL;DR: The interplay of surface and bulk transient carrier dynamics in a photoexcited topological insulator can control an essential parameter for photoconductivity-the balance between excess electrons and holes in the Dirac cone.
Journal ArticleDOI
Full characterization and optimization of a femtosecond ultraviolet laser source for time and angle-resolved photoemission on solid surfaces.
TL;DR: The UV source has been fully characterized spatially, spectrally, and temporally and its potential for time and angle-resolved photoemission is demonstrated through Fermi surface mapping and photoexcited electron dynamics in Bismuth.
Journal ArticleDOI
Coherent phonon coupling to individual Bloch states in photoexcited bismuth.
E. Papalazarou,Jérôme Faure,J. Mauchain,Marino Marsi,A. Taleb-Ibrahimi,Igor Reshetnyak,A. van Roekeghem,Iurii Timrov,Nathalie Vast,B. Arnaud,Luca Perfetti +10 more
TL;DR: All the electronic states at the bismuth (111) surface display a photoinduced shift towards higher binding energy whose dynamics follows the evolution of the electronic temperature.