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Suspended graphene samples are observed to be gently rippled rather than being flat. In [M. Friedrich, U. Stefanelli. Graphene ground states, arXiv:1802.05049], we have checked that this nonplanarity can be rigorously described within the…

Mesoscale and Nanoscale Physics · Physics 2020-02-18 Manuel Friedrich , Ulisse Stefanelli

The production of multiple types of graphene, such as free standing, epitaxial graphene on silicon carbide and metals, graphene in solution, chemically grown graphene-like molecules, various graphene nanoribbons, and graphene oxide with…

Materials Science · Physics 2013-01-14 D. W. Boukhvalov

This study reports the successful synthesis of multilayered graphene sheets via microwave atmospheric pressure plasma. This innovative approach streamlines and expedites graphene production and other carbon nanostructures, eliminating the…

Plasma Physics · Physics 2024-03-07 Waqas Iqbal , Najeeb-ur-Rehman , Niaz Wali

Recent experimental utilization of liquid substrate in the production of two-dimensional crystals, such as graphene, together with a general interest in amorphous materials, raises the following question: is it beneficial to use a liquid…

Statistical Mechanics · Physics 2022-03-14 Deborah Schwarcz , Stanislav Burov

We propose potential geometry for fabrication of the graphite sheets with atomically smooth edges. For such sheets with Bernal stacking, the electron-electron interaction and topology should cause sufficiently high density of states…

Superconductivity · Physics 2017-09-20 G. E. Volovik , V. M. Pudalov

Although many graphene derivatives have sizable band gaps, their electrical or mechanical properties are significantly degraded due to the low degree of {\pi}-conjugation. Besides the {\pi}-{\pi} conjugation, there exists hyperconjugation…

Materials Science · Physics 2019-12-06 Gui-Lin Zhu , Xiao-Juan Ye , Chun-Sheng Liu

A dielectric multilayer platform has been investigated as a foundation for two-dimensional optics. In this paper, we present, to the best of our knowledge, the first experimental demonstration of absorption of Bloch surface waves in the…

It is shown that lines of adsorbed hydrogen pair atoms divide the graphene sheet into strips and form hydrogen-based superlattice structures (2HG-SL). We show that the forming of 2HG-SL drastically changes the electronic properties of…

Materials Science · Physics 2009-11-13 Leonid A. Chernozatonskii , Pavel B. Sorokin , Jochen W. Bruning

The two-dimensionality of graphene and other layered materials can be exploited to simplify the theoretical description of their plasmonic and polaritonic modes. We present an analytical theory that allows us to simulate these excitations…

Mesoscale and Nanoscale Physics · Physics 2018-08-21 Renwen Yu , Joel D. Cox , J. R. M. Saavedra , F. Javier García de Abajo

Exercising direct control over the unusual electronic structures arising from quantum confinement effects in graphene nanoribbons (GNRs) - atomically defined quasi one-dimensional (1D) strips of graphene - is intimately linked to geometric…

Mesoscale and Nanoscale Physics · Physics 2023-04-18 Sai Ho Pun , Aidan Delgado , Christina Dadich , Adam Cronin , Felix R. Fischer

Mixtures of nanoparticles and polymer-like objects are encountered in many nanotechnological applications and biological systems. We study the behavior of grafted polymer layers decorated by nanoparticles that are attracted to the polymers…

Soft Condensed Matter · Physics 2011-10-31 Michael G. Opferman , Rob D. Coalson , David Jasnow , Anton Zilman

We are generalizing to higher dimensions the Bavard-Ghys construction of the hyperbolic metric on the space of polygons with fixed directions of edges. The space of convex d-dimensional polyhedra with fixed directions of facet normals has a…

Geometric Topology · Mathematics 2019-02-20 Francois Fillastre , Ivan Izmestiev

Single layers of carbon dubbed "graphenes", from which graphite is built, have attracted broad interest in the scientific community because of recent exciting experimental results. Graphene is interesting from a fundamental research…

Materials Science · Physics 2008-01-05 Yakov Kopelevich , Pablo Esquinazi

By means of ab initio calculations we investigate the possibility of existence of a boron nitride (BN) porous two-dimensional nanosheet which is geometrically similar to the carbon allotrope known as biphenylene carbon. The proposed…

Materials Science · Physics 2014-10-02 Eric Perim , Ricardo Paupitz , Pedro Alves da Silva Atreto , Douglas Galvão

Two dimensional optical materials, such as graphene can be characterized by a surface conductivity. So far, the transformation optics schemes have focused on three dimensional properties such as permittivity $\epsilon$ and permeability…

Optics · Physics 2014-12-16 Anshuman Kumar , Kin Hung Fung , M. T. Homer Reid , Nicholas Fang

Van der Waals atomic solids of noble gases on metals at cryogenic temperatures were the first experimental examples of two-dimensional systems. Recently such structures have also been created on surfaces under encapsulation by graphene,…

Mesoscale and Nanoscale Physics · Physics 2024-01-18 Manuel Längle , Kenichiro Mizohata , Clemens Mangler , Alberto Trentino , Kimmo Mustonen , E. Harriet Åhlgren , Jani Kotakoski

By means of an envelope function analysis, we perform a numerical investigation of the conductance behavior of a graphene structure consisting of two regions (dots) connected to the entrance and exit leads through constrictions and…

Mesoscale and Nanoscale Physics · Physics 2013-12-24 Paolo Marconcini , Massimo Macucci

Atoms deposited on two-dimensional (2D) electronic materials, such as graphene, can exhibit unconventional many-body correlations, not accessible in other settings. All of these are driven by van der Waals forces: between the atoms…

Mesoscale and Nanoscale Physics · Physics 2022-01-13 Adrian Del Maestro , Carlos Wexler , Juan M. Vanegas , Taras Lakoba , Valeri N. Kotov

Graphene Oxide and reduced Graphene Oxide are intriguing materials for photonics and electronic devices both for intrinsic characteristics and as precursors for the synthesis of graphene. Whatever the application and the engineering…

Graphene, a thinnest material in the world, can form moire structures on different substrates, including graphite, h-BN, or metal surfaces. In such systems the structure of graphene, i. e. its corrugation, as well as its electronic and…

Mesoscale and Nanoscale Physics · Physics 2016-07-12 Elena Voloshina , Yuriy Dedkov