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Moire materials like twisted bilayer graphene have emerged as a rich playground of strongly correlated physics, where the effect of interactions can be drastically enhanced by tuning the non-interacting density of states via twist angle. A…

Strongly Correlated Electrons · Physics 2025-06-26 Tamaghna Hazra

Bilayer graphene is a nanomaterial that allows for well-defined, separated quantum states to be defined by electrostatic gating and, therefore, provides an attractive platform to construct tunable quantum dots. When a magnetic field…

Mesoscale and Nanoscale Physics · Physics 2022-12-23 Jozef Bucko , Frank Schäfer , František Herman , Rebekka Garreis , Chuyao Tong , Annika Kurzmann , Thomas Ihn , Eliska Greplova

The recent emergence of strain gradient engineering directly affects the nanomechanics, optoelectronics and thermal transport fields in 2D materials. More specifically, large suspended graphene under very high stress represents the…

Mesoscale and Nanoscale Physics · Physics 2019-01-25 Julien Chaste , Amine Missaoui , Amina Saadani , Daniel Garcia-Sanchez , Debora Pierucci , Zeineb Ben Aziza , Abdelkarim Ouerghi

Graphene is a rising star in nonlinear optics due to its saturable absorption and giant Kerr nonlinearity, these properties are useful in digital optics based on optical nonlinear devices. However, practical applications require large…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 Qiaoliang Bao , Jianqiang Chen , Yuanjiang Xiang , Kai Zhang , Shaojuan Li , Xiaofang Jiang , Qing-Hua Xu , Kian Ping Loh , T. Venkatesan

Inspired by macroscale vehicles, many molecular machines have been synthesized yet. Due to the importance of atomic manipulation at the surface, nanocars are of particular interest. Nanocar wheels play a crucial role in their motion. One of…

Chemical Physics · Physics 2021-08-03 Mehran Vaezi , Hossein Nejat Pishkenari

Planar electrodes patterned on a ferroelectric substrate are shown to provide lateral control of the conductive state of a two-terminal graphene stripe. A multi-level and on-demand memory control of the graphene resistance state is…

Materials Science · Physics 2015-11-17 V. Iurchuk , H. Majjad , F. Chevrier , D. Kundys , B. Leconte , B. Doudin , B. Kundys

Graphene is an ideal material for fabricating atomically thin nanometre spaced electrodes. Recently, carbon-based nanoelectrodes have been employed to create single-molecule transistors and phase change memory devices. In spite of the…

Electronic properties of bilayer and multilayer graphene have generally been interpreted in terms of AB or Bernal stacking. However, it is known that many types of stacking defects can occur in natural and synthetic graphite; rotation of…

Materials Science · Physics 2011-11-09 J. M. B. Lopes dos Santos , N. M. R. Peres , A. H. Castro Neto

Graphene - a monolayer of carbon atoms densely packed into a hexagonal lattice - has one of the strongest possible atomic bonds and can be viewed as a robust atomic-scale scaffold, to which other chemical species can be attached without…

Establishing good electrical contacts to nanoscale devices is a major issue for modern technology and contacting 2D materials is no exception to the rule. One-dimensional edge-contacts to graphene were recently shown to outperform surface…

We demonstrate that graphene coating can provide an efficient protection from oxidation by posing a high energy barrier to the path of oxygen atom, which could have penetrated from the top of graphene to the reactive surface underneath.…

Mesoscale and Nanoscale Physics · Physics 2012-04-25 M. Topsakal , H. Şahin , S. Ciraci

Graphene nano-electro-mechanical switches are promising components due to their excellent switching performance such as low pull-in voltage and low contact resistance. Mass fabrication with an appropriate counter electrode remains…

Cold atoms in an optical lattice with brick-wall geometry have been used to mimic graphene, a two-dimensional material with characteristic Dirac excitations. Here we propose to bring such artificial graphene into the proximity of a second…

The difficulty in determining the mass of a sample increases as its size diminishes. At the nanoscale, there are no direct methods for resolving the mass of single molecules or nanoparticles and so more sophisticated approaches based on…

Materials Science · Physics 2015-06-03 Stas M. Avdoshenko , Claudia Gomes da Rocha , Gianaurelio Cuniberti

Quantum confined devices that manipulate single electrons in graphene are emerging as attractive candidates for nanoelectronics applications. Previous experiments have employed etched graphene nanostructures, but edge and substrate disorder…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Monica T. Allen , Jens Martin , Amir Yacoby

The enormous stiffness and low density of graphene make it an ideal material for nanoelectromechanical (NEMS) applications. We demonstrate fabrication and electrical readout of monolayer graphene resonators, and test their response to…

Nickel molybdate (NiMoO$_{4}$) nanowires were prepared on chemical-vapor-deposition-grown three-dimensional graphene skeletons by hydrothermal method. The X-ray diffraction and Raman results show that NiMoO$_{4}$ is $\alpha{}$ phase. This…

Materials Science · Physics 2015-11-11 Xiaozhi Liu , Ke Zhang , Baolin Yang , Wenlei Song , Qian Liu , Fei Jia , Shiyi Qin , Wanjun Chen , Zhenxing Zhang , Jian Li

Contamination of graphene due to residues from nanofabrication often introduces background doping and reduces charge carrier mobility. For samples of high electronic quality, post-lithography cleaning treatments are therefore needed. We…

Materials Science · Physics 2012-02-24 A. M. Goossens , V. E. Calado , A. Barreiro , K. Watanabe , T. Taniguchi , L. M. K. Vandersypen

Two experimental studies reported the spontaneous formation of amorphous and crystalline structures of C60 intercalated between graphene and a substrate. They observed interesting phenomena ranging from reaction between C60 molecules under…

Mesoscale and Nanoscale Physics · Physics 2019-10-21 Alexandre F. Fonseca , Sócrates O. Dantas , Douglas S. Galvão , Difan Zhang , Susan B. Sinnott

The layer-resolved quantum transport response of a twisted bilayer graphene device is investigated by driving a current through the bottom layer and measuring the induced voltage in the top layer. Devices with four- and eight-layer…

Mesoscale and Nanoscale Physics · Physics 2025-06-18 Matheus H. Gobbo Kuhn , L. A. Silva , D. A. Bahamon