DEPARTMENT OF
PHYSICAL CHEMISTRY
News Report
Simultaneous probe of electron-lattice interactions in photoexcited antimony
Feb 2017

Researchers of the Structural and Electronic Surface Dynamics group of the FHI Department of Physical Chemistry, Berlin, in cooperation with colleagues at Theoretical Physics II & Center for Interdisciplinary Nanostructure Science and Technology of the University of Kassel, have published a joint article in the Physical Review B, demonstrating in the example of photoexcited atimony, that the entire electron-lattice interaction, particularly coherent and incoherent electron-phonon coupling, can be probed simultaneously. Femtosecond electron diffraction (FED) with high temporal resolution allowed to simultaneously observe coherent excitation of the fully symmetric A1g optical phonon mode as well as energy transfer from electrons to phonons via incoherent electron-lattice scattering.