Results 11 to 20 of about 3,336 (157)

Tuning valley polarization of moiré trapped biexcitons by fine structure occupation in WS2/WSe2 heterostructures [PDF]

open access: yesNature Communications
Two-dimensional transition metal dichalcogenides (TMDs) heterostructures formed moiré superlattices have emerged as a new platform for exploring correlated excitonic states and valleytronic phenomena.
Yufei Jiang   +12 more
doaj   +2 more sources

Localized dissipation in linear moiré heat transport [PDF]

open access: yesNature Communications
Moiré superlattices created by twistronics generate flat bands for enabling localization in topological and quantum system. Most prior realizations rely on nonlinear interactions among electrons, photons, or other particles to achieve moiré-driven ...
Guoqiang Xu   +6 more
doaj   +2 more sources

Moiré straintronics: a universal platform for reconfigurable quantum materials

open access: yesnpj 2D Materials and Applications, 2023
Large-scale two-dimensional (2D) moiré superlattices are driving a revolution in designer quantum materials. The electronic interactions in these superlattices, strongly dependent on the periodicity and symmetry of the moiré pattern, critically determine
M. Kögl   +5 more
doaj   +1 more source

Evidence for moiré intralayer excitons in twisted WSe2/WSe2 homobilayer superlattices

open access: yesLight: Science & Applications, 2022
The moiré intralayer excitons in the twisted WSe2/WSe2 homobilayers superlattices were successfully observed and confirmed the existence of moiré intralayer excitons.
Biao Wu   +10 more
doaj   +1 more source

Moiré excitons at line defects in transition metal dichalcogenides heterobilayers

open access: yesComptes Rendus. Physique, 2021
In heterobilayers of 2D semiconductors, moiré pattern forms due to the inevitable lattice mismatch and twisting. Earlier works have shown that interlayer excitons in long-period moiré pattern experience a pronounced superlattice potential and have ...
Tang, Jianju   +3 more
doaj   +1 more source

Interlayer donor-acceptor pair excitons in MoSe2/WSe2 moiré heterobilayer

open access: yesNature Communications, 2023
Localized interlayer excitons (LIXs) in two-dimensional moiré superlattices exhibit sharp and dense emission peaks, making them promising as highly tunable single-photon sources. However, the fundamental nature of these LIXs is still elusive.
Hongbing Cai   +20 more
doaj   +1 more source

Giant enhancement of second harmonic generation from monolayer 2D materials placed on photonic moiré superlattice

open access: yesNanophotonics, 2023
We numerically investigate second harmonic generation (SHG) from a monolayer of 2D-material placed on photonic moiré superlattice fabricated by dielectric materials.
Ning Tingyin   +4 more
doaj   +1 more source

Tuning moiré excitons and correlated electronic states through layer degree of freedom

open access: yesNature Communications, 2022
Twisted heterostructures of transition metal dichalcogenides host the so-called moiré excitons, or intralayer excitons modified by the moiré potential. Here the authors show tunability of the moiré excitons and the coexisting correlated electronic states
Dongxue Chen   +13 more
doaj   +1 more source

Moir\'e excitons: from programmable quantum emitter arrays to spin-orbit coupled artificial lattices [PDF]

open access: yes, 2017
Highly uniform and ordered nanodot arrays are crucial for high performance quantum optoelectronics including new semiconductor lasers and single photon emitters, and for synthesizing artificial lattices of interacting quasiparticles towards quantum ...
Liu, Gui-Bin   +4 more
core   +2 more sources

Localization-enhanced moiré exciton in twisted transition metal dichalcogenide heterotrilayer superlattices

open access: yesLight: Science & Applications, 2023
The stacking of twisted two-dimensional (2D) layered materials has led to the creation of moiré superlattices, which have become a new platform for the study of quantum optics.
Haihong Zheng   +9 more
doaj   +1 more source

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