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Plasmon resonance in nanopatterned single layer graphene nanoribbon (SL-GNR), double layer graphene nanoribbon (DL-GNR) and triple layer graphene nanoribbon (TL-GNR) structures is studied both experimentally and by numerical simulations. We…

Recently, two-dimensional nanostructures consisting of alternating graphene and boron nitride (BN) domains have been synthesized. These systems possess interesting electronic and mechanical properties, with potential applications in…

介观与纳米尺度物理 · 物理学 2015-06-16 Yan Li , Riccardo Mazzarello

In this article, we have theoretically investigated the performance of graphene-hexagonal Boron Nitride hyper crystals to demonstrate all angle negative refraction.Hexagonal Boron Nitride, the latest natural hyperbolic material; can be a…

Nanoporous graphene (NPG), consisting of ordered arrays of nanopores separated by graphene nanoribbons was recently realized using a bottom-up synthesis method (Science 360(2018), 199). In this work we accordingly explored the mechanical…

介观与纳米尺度物理 · 物理学 2019-03-12 Bohayra Mortazavi , Mohamed E. Madjet , Masoud Shahrokhi , Said Ahzi , Xiaoying Zhuang , Timon Rabczuk

Nanostructuring materials at small scales enables control over their physical properties, revealing behaviors not observed at larger dimensions. This strategy is particularly effective in two-dimensional (2D) materials, where surface…

Negative friction coefficients, where friction is reduced upon increasing normal load, are predicted for superlubric graphite-hexagonal boron nitride heterojunctions. The origin of this counterintuitive behavior lies in the load-induced…

介观与纳米尺度物理 · 物理学 2019-02-22 Davide Mandelli , Wengen Ouyang , Oded Hod , Michael Urbakh

Negative refractive index materials (NRIM) make possible unique effects such as a convergent at lens due to the reversed Snell-Descartes laws of refraction. NRIM are also known to be able to support a host of surface plasmon states for both…

With the motivation of improving the performance and reliability of aggressively scaled nano-patterned graphene field-effect transistors, we present the first systematic experimental study on charge and current distribution in multilayer…

介观与纳米尺度物理 · 物理学 2009-09-11 Yang Sui , Joerg Appenzeller

Carbon-based nanostructures and graphene, in particular, evoke a lot of interest as new promising materials for nanoelectronics and spintronics. One of the most important issue in this context is the impact of external electrodes on…

介观与纳米尺度物理 · 物理学 2012-03-16 S. Krompiewski

Graphene and some graphene like two dimensional materials; hexagonal boron nitride (hBN) and silicene have unique mechanical properties which severely limit the suitability of conventional theories used for common brittle and ductile…

材料科学 · 物理学 2017-04-11 Tawfiqur Rakib , Satyajit Mojumder , Sourav Das , Sourav Saha , Mohammad Motalab

Monolayer lateral heterostructure of graphene and hexagonal boron nitride (h-BNC) has attracted a growing attention mainly due to its tunable band-gap character and unique physical properties at interface. Hereby, we reported the first-time…

Twisted bilayer graphene (TBG) has taken the spotlight in the condensed matter community since the discovery of correlated phases at the so-called magic angle. Interestingly, the role of a substrate on the electronic properties of TBG has…

介观与纳米尺度物理 · 物理学 2022-04-26 Min Long , Pierre A. Pantaleón , Zhen Zhan , Francisco Guinea , Jose Ángel Silva-Guillén , Shengjun Yuan

We study the stability of various kinds of graphene samples under soft X-ray irradiation. Our results show that in single layer exfoliated graphene (a closer analogue to two dimensional material), the in-plane carbon-carbon bonds are…

材料科学 · 物理学 2015-05-14 S. Y. Zhou , C. O. Girit , A. Scholl , C. J. Jozwiak , D. A. Siegel , P. Yu , J. T. Robinson , F. Wang , A. Zettl , A. Lanzara

We investigate theoretically the performance advantages of all-graphene nanoribbon field-effect transistors (GNRFETs) whose channel and source/drain (contact) regions are patterned monolithically from a two-dimensional single sheet of…

介观与纳米尺度物理 · 物理学 2011-12-14 Dincer Unluer , Frank Tseng , Avik W. Ghosh , Mircea R. Stan

Stacking mismatches in hexagonal boron nitride (h-BN) nanostructures affect their photonic, mechanical, and thermal properties. To access information about the stacked configuration of layered ensembles, highly sophisticated techniques like…

材料科学 · 物理学 2021-03-03 Luigi Cigarini , Michal Novotný , František Karlický

Nanoelectromechanical systems (NEMS) constitute a class of devices lying at the interface between fundamental research and technological applications. Integrating novel materials such as graphene into NEMS allows studying their mechanical…

介观与纳米尺度物理 · 物理学 2015-11-03 Muhammed Malik Benameur , Fernando Gargiulo , Sajedeh Manzeli , Gabriel Autes , Mahmut Tosun , Oleg V. Yazyev , Andras Kis

Graphene has been recognized as an attractive two-dimensional material for fundamental research and wide applications in electronic and photonic devices owing to its unique properties. The technologies to modulate the properties of graphene…

光学 · 物理学 2016-01-26 Yang Tan , Zhen Shang , Shavkat Akhmadaliev , Shengqiang Zhou , Feng Chen

Using non-equilibrium Green's function formalism, we investigate nonlinear transport and charging effects of gated graphene nanoribbons (GNRs) with even number of zigzag chains. We find a negative differential resistance (NDR) over a wide…

介观与纳米尺度物理 · 物理学 2015-05-20 Hosein Cheraghchi , Hanyieh Esmailzade

We study the effective interaction between a planar array of uniformly negatively charged, stiff rods parallel to a negatively charged planar substrate in the absence of salt in a continuous, isotropic dielectric medium. Using Brownian…

软凝聚态物质 · 物理学 2009-10-31 R. Jay Mashl , Niels Grønbech-Jensen

Negative differential thermal resistance (NDTR) in approximate graphene nanoribbons (GNRs) is investigated from one dimension to three dimensions by using classical molecular dynamics method. For single-layer GNRs, NDTR can not be observed…

介观与纳米尺度物理 · 物理学 2014-07-29 Bao-quan Ai , Wei-rong Zhong , Bambi Hu