Results 21 to 30 of about 5,255,189 (272)

Topological charge pumping by a sliding moiré pattern [PDF]

open access: yesPhysical review B, 2019
We study the adiabatic topological charge pumping driven by interlayer sliding in the moire superlattices. We show that, when we slide a single layer of the twisted bilayer system relatively to the other, a moire pattern flow and a quantized transport of
Manato Fujimoto   +2 more
semanticscholar   +1 more source

Quantum-Confined Electronic States Arising from the Moiré Pattern of MoS2-WSe2 Heterobilayers. [PDF]

open access: yesNano letters (Print), 2017
A two-dimensional (2D) heterobilayer system consisting of MoS2 on WSe2, deposited on epitaxial graphene, is studied by scanning tunneling microscopy and spectroscopy at temperatures of 5 and 80 K.
Yi Pan   +9 more
semanticscholar   +1 more source

Moiré-pattern fluctuations and electron-phason coupling in twisted bilayer graphene [PDF]

open access: yesPhysical review B, 2019
In twisted bilayer graphene, long-wavelength lattice fluctuations on the scale of the moir\'e period are dominated by phason modes, i.e., acoustic branches of the incommensurate lattice resulting from coherent superpositions of optical phonons.
H. Ochoa
semanticscholar   +1 more source

The Hide-and-Seek of Grain Boundaries from Moiré Pattern Fringe of Two-Dimensional Graphene. [PDF]

open access: yesSci Rep, 2015
Grain boundaries (GBs) commonly exist in crystalline materials and affect various properties of materials. The facile identification of GBs is one of the significant requirements for systematical study of polycrystalline materials including recently ...
Kim JH, Kim K, Lee Z.
europepmc   +2 more sources

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

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

Dynamical signature of the moiré pattern in a non-Hermitian ladder [PDF]

open access: yesPhysical review B, 2018
We study the dynamical behavior of a non-Hermitian moire superlattice system, which consists of two-coupled Su-Schrieffer-Heeger (SSH) chains with staggered imaginary on-site potentials.
Xiaoying Yang   +3 more
semanticscholar   +1 more source

Graphene on boron-nitride: Moiré pattern in the van der Waals energy [PDF]

open access: green, 2014
The spatial dependence of the van der Waals (vdW) energy between graphene and hexagonal boron-nitride (h-BN) is investigated using atomistic simulations.
M. Neek-Amal, F. M. Peeters
openalex   +3 more sources

Spatially resolved electronic structure of twisted graphene [PDF]

open access: yes, 2017
We have used scanning tunneling microscopy and spectroscopy to resolve the spatial variation of the density of states of twisted graphene layers on top of a highly oriented pyrolytic graphite substrate.
Bampoulis, Pantelis   +10 more
core   +4 more sources

Review of Orbital Magnetism in Graphene-Based Moiré Materials

open access: yesMagnetism, 2023
Recent years have seen the emergence of moiré materials as an attractive platform for observing a host of novel correlated and topological phenomena.
Priyamvada Jadaun, Bart Soreé
doaj   +1 more source

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