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Charge transfer and asymmetric coupling of MoSe valleys to the magnetic order of CrSBr
C. Serati de Brito, P. E. Faria Junior, T. S. Ghiasi +13
Van der Waals (vdW) heterostructures composed of two-dimensional (2D) transition metal dichalcogenides (TMD) and vdW magnetic materials offer an intriguing platform to functionaliz…
Emergent Trion-Phonon Coupling in Atomically-Reconstructed MoSe-WSe Heterobilayers
Sebastian Meier, Yaroslav Zhumagulov, Matthias Dietl +8
In low-temperature resonant Raman experiments on MoSe-WSe heterobilayers, we identify a hybrid interlayer shear mode (HSM) with an energy, close to the interlayer shear mod…
Ultrafast pseudospin quantum beats in multilayer WSe and MoSe
Simon Raiber, Paulo E. Faria Junior, Dennis Falter +6
Layered van-der-Waals materials with hexagonal symmetry offer an extra degree of freedom to their electrons, the so called valley index or valley pseudospin. This quantity behaves…
Interlayer exciton valley polarization dynamics in large magnetic fields
Johannes Holler, Malte Selig, Michael Kempf +11
In van der Waals heterostructures (HS) consisting of stacked MoSe and WSe monolayers, optically bright interlayer excitons (ILE) can be observed when the constituent layers…
Large-scale mapping of moiré superlattices by Raman imaging of interlayer breathing mode and moiré phonons
Kai-Qiang Lin, Johannes Holler, Jonas M. Bauer +6
Moiré superlattices can induce correlated-electronic phases in twisted van-der-Waals materials. Strongly correlated quantum phenomena emerge, such as superconductivity and the Mott…
Absence of a giant spin Hall effect in plasma-hydrogenated graphene
Tobias Völkl, Denis Kochan, Thomas Ebnet +8
The weak spin-orbit interaction in graphene was predicted to be increased, e.g., by hydrogenation. This should result in a sizable spin Hall effect (SHE). We employ two different m…