Results 51 to 60 of about 908 (165)

Twistronics of Kekulé Graphene: Honeycomb and Kagome Flat Bands

open access: yesPhysical Review Letters, 2023
Kekulé-O order in graphene, which has recently been realized experimentally, induces Dirac electron masses on the order of $m \sim 100 \text{meV}$. We show that twisted bilayer graphene in which one or both layers have Kekulé-O order exhibits nontrivial flat electronic bands on honeycomb and kagome lattices.
Michael G. Scheer, Biao Lian
openaire   +3 more sources

Twistronics in graphene-based van der Waals structures [PDF]

open access: yesChinese Physics B, 2020
Comment: Invited ...
Ren, Ya-Ning   +3 more
openaire   +2 more sources

Magical moiré patterns in twisted bilayer graphene: A review on recent advances in graphene twistronics

open access: yesChemical Physics Impact, 2023
Graphene has nearly become an area that is experiencing rapid growth. The observation of moiré patterns in mechanically stacked graphene layers has triggered rapid progress in graphene research.
Shreyas S. Dindorkar   +2 more
doaj   +1 more source

Heterostrain and temperature-tuned twist between graphene/h-BN bilayers

open access: yesScientific Reports, 2023
Two-dimensional materials stacked atomically at small twist angles enable the modification of electronic states, motivating twistronics. Here, we demonstrate that heterostrain can rotate the graphene flake on monolayer h-BN within a few degrees (− 4° to ...
Xing Yang, Bin Zhang
doaj   +1 more source

In-situ twistable bilayer graphene

open access: yesScientific Reports, 2022
The electrical and optical properties of twisted bilayer graphene (tBLG) depend sensitively on the twist angle. To study the angle dependent properties of the tBLG, currently it is required fabrication of a large number of samples with systematically ...
Cheng Hu   +13 more
doaj   +1 more source

Charge-Order and Broken Rotational Symmetry in Magic Angle Twisted Bilayer Graphene

open access: yes, 2019
The discovery of correlated electronic phases, including Mott-like insulators and superconductivity, in twisted bilayer graphene (TBLG) near the magic angle, and the intriguing similarity of their phenomenology to that of the high-temperature ...
Andrei, Eva Y.   +6 more
core   +1 more source

Electron quantum metamaterials in van der Waals heterostructures

open access: yes, 2018
In recent decades, scientists have developed the means to engineer synthetic periodic arrays with feature sizes below the wavelength of light. When such features are appropriately structured, electromagnetic radiation can be manipulated in unusual ways ...
A Avsar   +101 more
core   +1 more source

Atomic Insights into Fracture Characteristics of Twisted Tri-Layer Graphene

open access: yesCrystals, 2021
Graphene twistronics have recently gained significant attention due their superconductive behavior as a consequence of their tunable electronic properties.
Hassan Shoaib   +2 more
doaj   +1 more source

Selection rules of twistronic angles in 2D material flakes via dislocation theory

open access: yes, 2020
Interlayer rotation angle couples strongly to the electronic states of twisted van der Waals layers. However, not every angle is energetically favorable.
Annevelink, Emil   +3 more
core   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

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