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k-resolved ultrafast light-induced band renormalization in monolayer WS on graphene
Niklas Hofmann, Alexander Steinhoff, Razvan Krause +6
Understanding and controlling the electronic properties of two-dimensional materials is crucial for their potential applications in nano- and optoelectronics. Monolayer transition…
On the survival of Floquet-Bloch states in the presence of scattering
S. Aeschlimann, S. A. Sato, R. Krause +9
Floquet theory has spawned many exciting possibilities for electronic structure control with light with enormous potential for future applications. The experimental realization in…
Direct evidence for efficient ultrafast charge separation in epitaxial WS/graphene heterostructure
S. Aeschlimann, A. Rossi, M. Chávez-Cervantes +8
We use time- and angle-resolved photoemission spectroscopy (tr-ARPES) to investigate ultrafast charge transfer in an epitaxial heterostructure made of monolayer WS and graphene…
Charge density wave melting in one-dimensional wires with femtosecond sub-gap excitation
M. Chávez-Cervantes, G. E. Topp, S. Aeschlimann +4
Charge density waves (CDWs) are symmetry-broken ground states that commonly occur in low-dimensional metals due to strong electron-electron and/or electron-phonon coupling. The non…
Band Structure Dynamics in Indium Wires
M. Chávez-Cervantes, R. Krause, S. Aeschlimann +1
One-dimensional Indium wires grown on Si(111) substrates, which are metallic at high temperatures, become insulating below K due to the formation of a Charge Density Wave…