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Related papers: First principles study of the graphene/Ru(0001) in…

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This paper focuses on the performance of the storage of Li and the stability of the hybrid structure of different lattice planes of the silicon clusters and graphene by the first-principle theory. In this paper, we calculate the binding…

Mesoscale and Nanoscale Physics · Physics 2012-03-01 Wu Jiangbin , Qian Yao , Guo Xiaojie , Cui Xianhui , Miao Ling , Jiang Jianjun

Ever since the discovery of graphene and subsequent explosion of interest in single atom thick materials, studying their mechanical properties has been an active area of research. New length scales often necessitate a rethinking of physical…

The intercalation of different species in graphene-metal interfaces is widely used to stabilise the artificial phases of different materials. However, formation of the surface alloys upon the guest-metal intercalation is still an open…

Materials Science · Physics 2021-12-28 Elena Voloshina , Beate Paulus , Yuriy Dedkov

We present a structural analysis of the multi-layer graphene-4HSiC(000-1}) system using Surface X-Ray Reflectivity. We show for the first time that graphene films grown on the C-terminated (000-1}) surface have a graphene-substrate bond…

Materials Science · Physics 2009-11-13 J. Hass , R. Feng , J. E. Millan-Otoya , X. Li , M. Sprinkle , P. N. First , C. Berger , W. A. de Heer , E. H. Conrad

The dynamical properties of the high-density Ru(001)-(1$\times$1)-O phase has been investigated by a combined high-resolution electron energy loss spectroscopy and density functional theory study. Due to a strong static outward relaxation…

Materials Science · Physics 2007-05-23 T. Moritz , W. Widdra , D. Menzel , K. -P. Bohnen , R. Heid

As the synthesis of graphene on copper became one of the primary preparation methods for both fundamental research and industrial application, Raman spectra of graphene/Cu systems need to be quantitatively understood regarding how their…

Materials Science · Physics 2020-08-07 Jieun Choi , Seonghyun Koo , Myeongin Song , Daeyool Jung , Sungyool Choi , Sunmin Ryu

Graphene monolayer grown by Si evaporation from the 0001 surface of SiC displays a moir\'e pattern of corrugation whose structure is ambiguous: different measurements and theoretical studies show either protruding bumps surrounded by…

Mesoscale and Nanoscale Physics · Physics 2018-04-27 Tommaso Cavallucci , Valentina Tozzini

Bottom-up graphene nanoribbon (GNR) heterojunctions are nanoscale strips of graphene whose electronic structure abruptly changes across a covalently bonded interface. Their rational design offers opportunities for profound technological…

The formation of graphen-nanotube composites addresses a few basic problems. First, both partners are good donors and acceptors of electrons, which significantly complicates the intermolecular interaction between them leading to a two-well…

Materials Science · Physics 2009-01-26 Elena F. Sheka , Leonid A. Chernozatonskii

We report the results of our first-principles investigation on the interaction of the nucleobases adenine (A), cytosine (C), guanine (G), thymine (T), and uracil (U) with graphene, carried out within the density functional theory framework,…

Materials Science · Physics 2007-07-05 S. Gowtham , Ralph H. Scheicher , Rajeev Ahuja , Ravindra Pandey , Shashi P. Karna

The morphology of graphene on SiC {0001} surfaces formed in various environments including ultra-high vacuum, 1 atm of argon, and 10^-6 to 10^-4 Torr of disilane is studied by atomic force microscopy, low-energy electron microscopy, and…

Materials Science · Physics 2015-05-30 N. Srivastava , Guowei He , Luxmi , P. C. Mende , R. M. Feenstra , Yugang Sun

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…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Yan Li , Riccardo Mazzarello

Hybrid Graphene/magnetic structures offer a unique playground for fundamental research, and opportunities for emerging technologies. Graphene-spaced ultrathin structures with antiferromagnetic exchange-coupling (AFC) seem a relevant…

Materials Science · Physics 2017-10-30 P. Gargiani , R. Cuadrado , H. B. Vasili , M. Pruneda , M. Valvidares

Supercapacitors store energy via the formation of an electric double layer, which generates a strong electric field at the electrode-electrolyte interface. Unlike conventional metallic electrodes, graphene-derived materials suffer from a…

Materials Science · Physics 2015-03-12 Maxwell D. Radin , Tadashi Ogitsu , Minoru Otani , Juergen Biener , Brandon C. Wood

Topographic scanning tunneling microscopy (STM) images of epitaxial single layer graphene on the Rh(111) surface reveal that extended single crystalline graphene domains are produced without any defects on a large scale. High resolution…

Materials Science · Physics 2010-10-08 M. Fonin , M. Sicot , O. Zander , S. Bouvron , Ph. Leicht , U. Rüdiger , M. Weser , Yu. S. Dedkov , K. Horn

The detailed study of the graphene (gr) moir\'e superlattices emerging due to the mismatch between the substrate's and gr-overlayer crystal lattices is inevitable because of its high technological relevance. However, little is known about…

Materials Science · Physics 2015-06-03 P. Süle , M. Szendrő

We propose, on the basis of our first principles density functional based calculations, a new isomer of graphane, in which the C-H bonds of a hexagon alternate in 3-up, 3-down fashion on either side of the sheet. This 2D puckered structure…

Materials Science · Physics 2011-01-31 A. Bhattacharya , S. Bhattacharya , C. Majumder , G. P. Das

The electronic structure of a single layer graphene on Ru(0001) is compared with that of a single layer hexagonal boron nitride nanomesh on Ru(0001). Both are corrugated sp2 networks and display a pi-band gap at the K point of their 1 x 1…

We present a comprehensive study of graphene grown by chemical vapor deposition on copper single crystals with exposed (100), (110) and (111) faces. Direct examination of the as-grown graphene by Raman spectroscopy using a range of visible…

Mesoscale and Nanoscale Physics · Physics 2014-02-03 Otakar Frank , Jana Vejpravova , Vaclav Holy , Ladislav Kavan , Martin Kalbac

The structural, electronic, and adhesive properties of Cu/SiO$_2$ interfaces are investigated using first-principles density-functional theory within the local density approximation. Interfaces between fcc Cu and $\alpha$-cristobalite(001)…

Materials Science · Physics 2016-08-31 Kazutaka Nagao , J. B. Neaton , N. W. Ashcroft