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A New Moiré Platform Based on M-Point Twisting
Dumitru Călugăru, Yi Jiang, Haoyu Hu +9
We introduce a new class of moiré systems and materials based on monolayers with triangular lattices and low-energy states at the M points of the Brillouin zone. These M-point moir…
Correlated states controlled by tunable van Hove singularity in moiré WSe2
Patrick Knüppel, Jiacheng Zhu, Yiyu Xia +7
Twisted bilayers of transition metal dichalcogenide semiconductors have enabled the discovery of superconductivity, ferromagnetism, correlated insulators and a series of new topolo…
Interlayer Fermi polarons of excited exciton states in quantizing magnetic fields
Huiying Cui, Qianying Hu, Xuan Zhao +9
The study of exciton-polarons has offered profound insights into the many-body interactions between bosonic excitations and their immersed Fermi sea within layered heterostructures…
Unconventional superconductivity in twisted bilayer WSe2
Yiyu Xia, Zhongdong Han, Kenji Watanabe +3
Moiré materials have enabled the realization of flat electron bands and quantum phases that are driven by strong correlations associated with flat bands. Superconductivity has been…
Tuning exciton emission via ferroelectric polarization at a heterogeneous interface between a monolayer transition metal dichalcogenide and a perovskite oxide membrane
Jaehong Choi, Kevin J. Crust, Lizhong Li +9
We demonstrate the integration of a thin BaTiO (BTO) membrane with monolayer MoSe in a dual gate device that enables in-situ manipulation of the BTO ferroelectric polarizat…
Observation of the fractional quantum spin Hall effect in moiré MoTe2
Kaifei Kang, Bowen Shen, Yichen Qiu +4
Quantum spin Hall (QSH) insulators are two-dimensional electronic materials that have a bulk band gap like an ordinary insulator but have topologically protected pairs of edge mode…
Observation of the double quantum spin Hall phase in moiré WSe2
Kaifei Kang, Yichen Qiu, Kenji Watanabe +3
Quantum spin Hall (QSH) insulators are a topologically protected phase of matter in two dimensions that can support non-dissipative spin transport. A hallmark of the phase is a pai…