6 papers · 1 filter
Interplay of non-local transport and local scattering during electron thermalization and spatial equilibration in laser-excited metals
Markus Uehlein, Tobias Held, Christopher Seibel +2
Ultrafast laser excitation of metals induces electronic nonequilibrium both in space and locally in the energy distribution. The subsequent dynamics are governed by the interplay b…
Electronic Signature of Melting Onset in Polycrystalline Copper at Extreme Conditions
Edna R. Toro, Tobias Held, Armin Bergermann +8
Ultrafast melting is fundamentally a structural transition of the ionic lattice, but this rearrangement also reshapes the electronic properties by changing the energy landscape and…
Competing thermalization pathways of photoexcited hot electrons
Christopher Seibel, Tobias Held, Markus Uehlein +1
Photoexcited hot carriers in solids can drive processes, such as photocatalytic reactions on the surface, beyond those available in thermal equilibrium. Hot-electron-mediated react…
Thermalization of Optically Excited Fermi Systems: Electron-Electron Collisions in Solid Metals
Stephanie Roden, Christopher Seibel, Tobias Held +3
Ultrafast optical excitation of metals induces a non-equilibrium energy distribution in the electronic system, with a characteristic step-structure determined by Pauli blocking. On…
Probing the atomic dynamics of ultrafast melting with femtosecond electron diffraction
M. Z. Mo, M. B. Maigler, T. Held +12
Melting is an everyday phase transition that is determined by thermodynamic parameters like temperature and pressure. In contrast, ultrafast melting is governed by the microscopic…
Capturing non-equilibrium electron dynamics in metals accurately and efficiently
M. Uehlein, H. T. Snowden, C. Seibel +4
The simulation of non-equilibrium electron distributions is essential for capturing light-metal interactions and therefore the study of photoabsorption, photocatalysis, laser ablat…