Results 21 to 30 of about 908 (165)
Quantum Phase Transitions in Graphene Coupled to a Twisted WSe<sub>2</sub> Moiré Ferroelectricity. [PDF]
Adv MaterMoiré ferroelectricity in twisted WSe2 (t‐WSe2) breaks graphene's sublattice symmetry, inducing a room‐temperature metal‐insulator transition. Coupling graphene with ferroelectric domains of t‐WSe2 creates local Dirac points and metallic phases with Fermi‐liquid and non‐Fermi‐liquid behavior.
Singh B +17 more
europepmc +2 more sources
Simulating Twistronics without a Twist [PDF]
Physical Review Letters, 2020 Published version, includes supplementary ...
Salamon, Tymoteusz +6 more
openaire +4 more sources
Atomic frustration-based twistronics [PDF]
2D Materials, 2021 We theoretically investigate atomic frustrated states in diatomic molecules hosted by the bilayer graphene setup twisted by the first magic angle and with broken inversion symmetry in the Dirac cones of the system mini Brillouin zones. Such states show local spectral features typically from uncoupled atoms, but counterintuitively, they also exhibit ...
W N Mizobata +7 more
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Graphene Twistronics: Tuning the Absorption Spectrum and Achieving Metamaterial Properties
Mathematics, 2023 Graphene twistronics using multilayer graphene is presented in such a way that it provides a metamaterial effect. This manuscript also analyzes the prediction of behavior using machine learning.
Ammar Armghan +5 more
doaj +1 more source
Simulating twistronics in acoustic metamaterials [PDF]
2D Materials, 2021 Abstract Twisted van der Waals heterostructures have recently emerged as a tunable platform for studying correlated electrons. However, these materials require laborious and expensive effort for both theoretical and experimental exploration.
S Minhal Gardezi +4 more
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Solvothermal growth of moiré superlattices in antimony telluride spiral-type nanoplates
Frontiers in Materials, 2022 The study of moiré superlattices (MSLs) has surged in recent years, as they have been found to host several emergent quantum phenomena associated with high electron correlations.
Robert Link +2 more
doaj +1 more source
ARPES Signatures of Few-Layer Twistronic Graphenes
Nano Letters, 2023 Diverse emergent correlated electron phenomena have been observed in twisted graphene layers due to electronic interactions with the moiré superlattice potential. Many electronic structure predictions have been reported exploring this new field, but with few momentum-resolved electronic structure measurements to test them.
Nunn, James E. +9 more
openaire +3 more sources
Twistronics for photons: opinion
Optical Materials Express, 2021 A pair of stacked two-dimensional heterostructures suitably rotated with respect to each other support exotic electronic properties with interesting implications for nanoelectronics and quantum technologies. A similar paradigm can be extended to light, offering a great promise for emerging low-dimensional nanophotonic heterostructures.
Guangwei Hu, Cheng-Wei Qiu, Andrea Alù
openaire +1 more source
Towards field-resolved visible microscopy of 2D materials. [PDF]
NanophotonicsAbstract The investigation of interaction of light with various materials on the sub‐cycle time scale requires field sampling techniques with incredibly high temporal resolution. Electro‐optic sampling (EOS) provides the sub‐wavelength resolution both in time and space giving the opportunity for ultrafast microscopy to observe response of electrons and
Kim D +3 more
europepmc +2 more sources
Hexagonal boron nitride: optical properties in the deep ultraviolet
Comptes Rendus. Physique, 2021 We review the recent advance in the understanding of the optoelectronic properties of hexagonal boron nitride (hBN) in the deep ultraviolet. The comparison between bulk hBN and monolayer hBN highlights some of their major differences such the bandgap ...
Cassabois, Guillaume +6 more
doaj +1 more source