Results 31 to 40 of about 5,255,189 (272)

Atypical Sliding and Moiré Ferroelectricity in Pure Multilayer Graphene. [PDF]

open access: yesPhysical Review Letters, 2023
Most nonferroelectric two-dimensional materials can be endowed with so-called sliding ferroelectricity via nonequivalent homobilayer stacking, which is not applicable to monoelement systems like pure graphene bilayer with inversion symmetry at any ...
Liu Yang   +3 more
semanticscholar   +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

Measurement of Focal Length and Radius of Curvature for Spherical Lenses and Mirrors by Using Digital-Grating Moiré Effect

open access: yesPhotonics, 2021
This paper proposes the use of digital-grating moiré effect for measuring the focal lengths and radius of curvatures of biconvex and biconcave spherical simple lenses and spherical mirrors.
Chien-Yuan Han   +5 more
doaj   +1 more source

Strained bilayer graphene, emergent energy scales, and moiré gravity

open access: yesPhysical Review Research, 2022
Twisted bilayer graphene is a rich condensed matter system, which allows one to tune energy scales and electronic correlations. The low-energy physics of the resulting moiré structure can be mathematically described in terms of a diffeomorphism in a ...
Alireza Parhizkar, Victor Galitski
doaj   +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

Interfacial Characteristics of Graphene-Reinforced Iron Composites: A Molecular Dynamics Study

open access: yesCrystals, 2022
Interface has a significant effect on mechanical properties of graphene reinforced metal composites. Taking graphene nanosheet reinforced iron composite (Gr/Fe) as an example, the interfacial characteristics of Gr/Fe (110), (111), (112¯), and (001 ...
Miaomiao Song   +6 more
doaj   +1 more source

Absence of superconductivity in ultra-thin layers of FeSe synthesized on a topological insulator [PDF]

open access: yes, 2016
The structural and electronic properties of FeSe ultra-thin layers on Bi$_{2}$Se$_{3}$ have been investigated with a combination of scanning tunneling microscopy and spectroscopy and angle-resolved photoemission spectroscopy. The FeSe multi-layers, which
Arnold, Fabian   +12 more
core   +3 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

Low-energy electron transmission imaging of clusters on free-standing graphene [PDF]

open access: yes, 2012
We investigated the utility of free-standing graphene as a transparent sample carrier for imaging nanometer-sized objects by means of low-energy electron holography.
Escher, Conrad   +3 more
core   +1 more source

In situ nanoscale imaging of moiré superlattices in twisted van der Waals heterostructures

open access: yesNature Communications, 2020
Direct visualization of moiré superlattices in van der Waals heterostructures is a needed diagnostic tool for the study of periodicity-induced electronic and optical phenomena.
Yue Luo   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy