4 papers
Surface-Sensitive Mapping of Anisotropic Phonon Cascades in T-WTe
Alp Akbiyik, Felix Kurtz, Nandana Veena Uday +3
Understanding how energy flows from photoexcited carriers into the lattice is essential for describing nonequilibrium phenomena in low-symmetry quantum materials. Here, we use ultr…
Evidence for reduced periodic lattice distortion within the Sb-terminated surface layer of the kagome metal CsVSb
Felix Kurtz, Gevin von Witte, Lukas Jehn +8
The discovery of the kagome metal CsVSb sparked broad interest, due to the coexistence of a charge density wave (CDW) phase and possible unconventional superconductivity in…
Optical switching of ferro-rotational charge-density wave states
Wayne Cheng-Wei Huang, Sai Mu, Gevin von Witte +7
Tailored optical excitations can steer a system along non-equilibrium pathways to metastable states with specific structural or electronic properties. The light-induced hidden stat…
Nonlinear Spectroscopy and All-Optical Switching of Femtosecond Soliton Molecules
Felix Kurtz, Claus Ropers, Georg Herink
The emergence of confined structures and pattern formation are exceptional manifestations of concurring nonlinear interactions found in a variety of physical, chemical and biologic…