Publications (18)
Dielectric catastrophe at the Mott and Wigner transitions in a moiré superlattice
Yanhao Tang, Jie Gu, Song Liu +5
The metal-insulator transition (MIT) driven by electronic correlations is a fundamental and challenging problem in condensed-matter physics. Particularly, whether such a transition…
Spatially mixed moiré excitons in two-dimensional van der Waals superlattices
Yanhao Tang, Jie Gu, Song Liu +5
Moiré superlattices open an unprecedented opportunity for tailoring interactions between quantum particles and their coupling to electromagnetic fields. Strong superlattice potent…
Gate-tunable hot electron extraction in a two-dimensional semiconductor heterojunction
Chenran Xu, Chen Xu, Jichen Zhou +9
Hot carrier solar cells (HCSCs), harvesting excess energy of the hot carriers generated by above-band-gap photoexcitation, is crucial for pushing the solar cell efficiency beyond t…
Exciton spin dynamics in GaSe
Yanhao Tang, Wei Xie, Krishna C. Mandal +2
We analyze exciton spin dynamics in GaSe under nonresonant circularly polarized optical pumping with an exciton spin-flip rate-equation model. The model reproduces polarized time-d…
Long valley lifetime of dark excitons in single-layer WSe2
Yanhao Tang, Kin Fai Mak, Jie Shan
Single-layer transition metal dichalcogenides (TMDs) provide a promising material system to explore the electron's valley degree of freedom as a quantum information carrier. The va…
Frustrated magnetic interactions in a Wigner-Mott insulator
Yanhao Tang, Kaixiang Su, Lizhong Li +9
Two-dimensional semiconductor moiré materials have emerged as a highly controllable platform to simulate and explore quantum condensed matter. Compared to real solids, electrons i…