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Excitons probe intrinsic flat band Mottness in a van der Waals heterostructure
Xinyue Huang, Xintong Tan, Haowei Chen +12
Excitons provide a sensitive optical probe of electronic correlations in nearby two-dimensional materials, yet their coupling to intrinsic flat-band Mott systems remains largely un…
Layer-parity-dependent interfacial coupling in NbCl/graphene van der Waals heterostructures
Hansheng Xu, Yuchen Gao, Xinyue Huang +8
Strongly correlated two-dimensional systems provide compelling platforms for investigating exotic quantum phenomena. Niobium chloride (NbCl), a single-band Mott insulator,…
Layer-parity-defined surface polarization in NbCl for excitonic modulation at van der Waals interfaces
Xinyue Huang, Hansheng Xu, Yuchen Gao +10
The intrinsic symmetry breaking in the breathing kagome lattice of layered NbCl provides a unique mechanism for realizing electrically polar surfaces. In each monolayer, th…
Polarized electroluminescence with magnetic spectral tuning in van der Waals magnet CrSBr
Yilei Wang, Shiqi Yang, Leyan Huang +7
Polarized wavelength-tunable electroluminescence (EL) represents a critical on-demand functionality for next-generation optoelectronics. While conventional van der Waals (vdW) EL d…