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Prediction of hyperbolic exciton-polaritons in monolayer black phosphorus
Fanjie Wang, Chong Wang, Andrey Chaves +8
Hyperbolic polaritons exhibit large photonic density of states and can be collimated in certain propagation directions. The majority of hyperbolic polaritons are sustained in man-m…
Tunable coupling of terahertz Dirac plasmons and phonons in transition metal dicalchogenide-based van der Waals heterostructures
I. R. Lavor, Andrey Chaves, F. M. Peeters +1
Dirac plasmons in graphene hybridize with phonons of transition metal dichalcogenides (TMDs) when the materials are combined in so-called van der Waals heterostructures (vdWh), thu…
Zitterbewegung of moiré excitons in twisted MoS/WSe hetero-bilayers
I. R. Lavor, D. R. da Costa, L. Covaci +3
The moiré pattern observed in stacked non-commensurate crystal lattices, such as hetero-bilayers of transition metal dichalcogenides, produces a periodic modulation of their bandga…
Tunable effective masses of magneto-excitons in two-dimensional materials
Andrey Chaves, F. M. Peeters
Excitonic properties of GeH and SnH, also known as Xanes, are investigated within the effective mass model. A perpendicularly applied magnetic field induces a negat…
Signatures of sub-band excitons in few-layer black phosphorus
A. Chaves, G. O. Sousa, K. Khaliji +3
Recent experimental measurements of light absorption in few-layer black phosphorus (BP) reveal a series of high and sharp peaks, interspersed by pairs of lower and broader features…