Results 11 to 20 of about 21,442 (198)

Indexing moiré patterns of metal-supported graphene and related systems: strategies and pitfalls

open access: yesNew Journal of Physics, 2017
We report on strategies for characterizing hexagonal coincidence phases by analyzing the involved spatial moiré beating frequencies of the pattern.
Patrick Zeller   +2 more
doaj   +1 more source

Brightened spin-triplet interlayer excitons and optical selection rules in van der Waals heterobilayers [PDF]

open access: yes, 2018
We investigate the optical properties of spin-triplet interlayer excitons in heterobilayer transition metal dichalcogenides in comparison with the spin-singlet ones.
Liu, Gui-Bin, Yao, Wang, Yu, Hongyi
core   +2 more sources

Capillary force-induced superlattice variation atop a nanometer-wide graphene flake and its moiré origin studied by STM

open access: yesBeilstein Journal of Nanotechnology, 2019
We present strong experimental evidence for the moiré origin of superlattices on graphite by imaging a live transition from one superlattice to another with concurrent and direct measurement of the orientation angle before and after rotation using ...
Loji K. Thomas, Michael Reichling
doaj   +1 more source

Intralayer Phonons in Multilayer Graphene Moiré Superlattices

open access: yesResearch, 2022
Moiré pattern in twisted multilayers (tMLs) induces many emergent phenomena by subtle variation of atomic registry to modulate quasiparticles and their interactions, such as superconductivity, moiré excitons, and moiré phonons.
Miao-Ling Lin   +13 more
doaj   +1 more source

Periodic spatial variation of the electron-phonon interaction in epitaxial graphene on Ru(0001 [PDF]

open access: yes, 2013
We have performed low temperature scanning tunnelling spectroscopy (STS) measurements on graphene epitaxially grown on Ru(0001). An inelastic feature, related to the excitation of a vibrational breathing mode of the graphene lattice, was found at 360 meV.
Agraït, Nicolás   +6 more
core   +2 more sources

Electrically tunable topological transport of moir\'e polaritons

open access: yes, 2020
Moir\'e interlayer exciton in transition metal dichalcogenide heterobilayer features a permanent electric dipole that enables the electrostatic control of its flow, and optical dipole that is spatially varying in the moir\'e landscape.
Yao, Wang, Yu, Hongyi
core   +1 more source

Band gap engineering by Bi intercalation of graphene on Ir(111) [PDF]

open access: yes, 2016
We report on the structural and electronic properties of a single bismuth layer intercalated underneath a graphene layer grown on an Ir(111) single crystal.
Bianchi, Marco   +9 more
core   +2 more sources

Exciton Superposition across Moiré States in a Semiconducting Moiré Superlattice

open access: yesNature Communications, 2023
Moiré superlattices of semiconducting transition metal dichalcogenides enable unprecedented spatial control of electron wavefunctions, leading to emerging quantum states.
Zhen Lian   +11 more
doaj   +1 more source

Light Confinement in Twisted Single-Layer 2D+ Moiré Photonic Crystals and Bilayer Moiré Photonic Crystals

open access: yesPhotonics, 2023
Twisted photonic crystals are photonic analogs of twisted monolayer materials such as graphene and their optical property studies are still in their infancy.
Steve Kamau   +4 more
doaj   +1 more source

Observation of Γ-Valley Moiré Bands and Emergent Hexagonal Lattice in Twisted Transition Metal Dichalcogenides

open access: yesPhysical Review X, 2022
Twisted van der Waals heterostructures have recently been proposed as a condensed-matter platform for realizing controllable quantum models due to the low-energy moiré bands with specific charge distributions moiré superlattices.
Ding Pei   +21 more
doaj   +1 more source

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