6 papers
Emergent Trion Resonance Driven by Lattice Reconstruction in a Moiré Superlattice
Zhida Liu, Haonan Wang, Xiaohui Liu +20
We investigate how many-electron excited states emerge in twisted MoSe2 homobilayers when the lattice reconstructions evolve. Notably, we identify a new trion resonance that arises…
Robust Super-Moiré in Large Angle Single-Twist Bilayers
Yanxing Li, Chuqiao Shi, Fan Zhang +19
Forming long wavelength moiré superlattices (MSL) at small-angle twist van der Waals (vdW) bilayers has been a key approach to creating moiré flat bands. The small-angle twist, h…
Experimental signature of layer skyrmions and implications for band topology in twisted WSe2 bilayers
Fan Zhang, Nicolás Morales-Durán, Yanxing Li +13
Transition metal dichalcogenide (TMD) twisted homobilayers have been established as an ideal platform for studying strong correlation phenomena, as exemplified by the recent discov…
Valley-mediated singlet- and triplet-polaron interactions and quantum dynamics in a doped WSe monolayer
Yue Ni, Di Huang, Danfu Liang +11
In doped transition metal dichalcogenides, optically created excitons (bound electron-hole pairs) can strongly interact with a Fermi sea of electrons to form Fermi polaron quasipar…
An active metasurface enhanced with moiré ferroelectricity
Dong Seob Kim, Chengxin Xiao, Roy C. Dominguez +11
Semiconductor moiré systems, characterized by their periodic spatial light emission, unveil a new paradigm of active metasurfaces. Here, we show that ferroelectric moiré domains…
Field-Tunable Valley Coupling and Localization in a Dodecagonal Semiconductor Quasicrystal
Zhida Liu, Qiang Gao, Yanxing Li +11
Quasicrystals are characterized by atomic arrangements possessing long-range order without periodicity. Van der Waals (vdW) bilayers provide a unique opportunity to controllably va…