Electrically tunable topological transport of moiré polaritons
arXiv:1912.04691 · doi:10.1016/j.scib.2020.05.030
Abstract
Moiré interlayer exciton in transition metal dichalcogenide heterobilayer features a permanent electric dipole that enables the electrostatic control of its flow, and optical dipole that is spatially varying in the moiré landscape. We show the hybridization of moiré interlayer exciton with photons in a planar 2D cavity leads to two types of moiré polaritons that exhibit distinct forms of topological transport phenomena including the spin/valley Hall and polarization Hall effects, which feature remarkable electrical tunability through the control of exciton-cavity detuning by the interlayer bias.
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Cited by in corpus (11)
- Van der Waals Heterostructure Polaritons with moiré-Induced Nonlinearity
- Exciton optics, dynamics and transport in atomically thin semiconductors
- Twist Angle Tuning of Moiré Exciton Polaritons in van der Waals Heterostructures
- Lattice relaxation, mirror symmetry and magnetic field effects on ultraflat bands in twisted trilayer graphene
- Moiré-induced optical non-linearities: Single and multi-photon resonances
- Leaky exciton condensates in transition metal dichalcogenide moiré bilayers
- Twist versus heterostrain control of optical properties of moiré exciton minibands
- Moiré exciton condensate: nonlinear Dirac point, broken-symmetry Bloch waves and unusual optical selection rules
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- Electrically tunable and enhanced nonlinearity of moiré exciton-polaritons in transition metal dichalcogenide bilayers