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相关论文: Quantum capacitance of the monolayer graphene

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A new formula for elastic bending modulus of monolayer graphene is derived analytically from an empirical potential for solid-state carbon-carbon bonds. Two physical origins are identified for the non-vanishing bending modulus of the…

材料科学 · 物理学 2015-05-13 Qiang Lu , Marino Arroyo , Rui Huang

Results of a study on the electrochemical properties of exfoliated single and multilayer graphene flakes are presented. Graphene flakes were deposited on silicon/silicon oxide wafers to enable fast and accurate characterization by optical…

介观与纳米尺度物理 · 物理学 2011-10-11 Anna T. Valota , Ian A. Kinloch , Kostya S. Novoselov , Cinzia Casiraghi , Axel Eckmann , Ernie W. Hill , Robert A. W. Dryfe

We investigate the low energy continuum limit theory for electrons in a graphene sheet under strain. We use the quantum field theory in curved spaces to analyze the effect of the system deformations into an effective gauge field. We study…

介观与纳米尺度物理 · 物理学 2015-12-15 Enrique Arias , Alexis R. Hernández , Caio Lewenkopf

The derived by us earlier electron scattering matrix for the short-range defects in monolayer graphene is applyed to description of the resistivity electron density dependence. It is argued that large charged defect density is unlikely in…

介观与纳米尺度物理 · 物理学 2011-11-04 Natalie E. Firsova , Sergey A. Ktitorov

We investigate the thermodynamic properties and the lattice stability of two-dimensional crystalline membranes, such as graphene and related compounds, in the low temperature quantum regime $T\rightarrow0$. A key role is played by the…

介观与纳米尺度物理 · 物理学 2014-07-02 B. Amorim , R. Roldán , E. Cappelluti , A. Fasolino , F. Guinea , M. I. Katsnelson

Graphene-based materials are thought to revolutionize entire industries. Therefore, many research are being carried on graphene theoretically and experimentally. On the other hand, recent studies show that the use of Dunkl derivative,…

介观与纳米尺度物理 · 物理学 2023-01-02 B. Hamil , B. C. Lütfüoğlu

Continuum modeling of a free-standing graphene monolayer, viewed as a two dimensional 2-lattice, requires specifications of the components of the shift vector that act as an auxiliary variable. The field equations are then the equations…

材料科学 · 物理学 2018-01-17 D. Sfyris , G. I. Sfyris , C. Galiotis

The weak temperature dependence of the resistance R(T) of monolayer graphene1-3 indicates an extraordinarily high intrinsic mobility of the charge carriers. Important complications are the presence of mobile scattering centres that strongly…

材料科学 · 物理学 2010-01-18 Viera Skakalova , Alan B. Kaiser , Jai Seung Yoo , Dirk Obergfell , Siegmar Roth

Due to Klein tunneling, electrostatic confinement of electrons in graphene is not possible. This hinders the use of graphene for quantum dot applications. Only through quasi-bound states with finite lifetime has one achieved to confine…

介观与纳米尺度物理 · 物理学 2018-05-29 Hasan M. Abdullah , M. Van der Donck , H. Bahlouli , F. M. Peeters , B. Van Duppen

Folded single layer graphene forms a system of two decoupled monolayers being only a few Angstroms apart. Using magnetotransport measurements we investigate the electronic properties of the two layers conducting in parallel. We show a…

介观与纳米尺度物理 · 物理学 2015-05-14 H. Schmidt , T. Luedtke , P. Barthold , R. J. Haug

Whether or not specific ion effects determine the charge storage properties of aqueous graphene and graphite-based supercapacitors remains a highly debated topic. In this work we present a multiscale quantum mechanics classical molecular…

材料科学 · 物理学 2022-11-10 Joshua D. Elliott , Mara Chiricotto , Alessandro Troisi , Paola Carbone

Using full potential density functional theory calculations we have investigated the structural and electronic properties of graphene and some other graphene-like materials, viz., monolayer of SiC, GeC, BN, AlN, GaN, ZnO, ZnS and ZnSe. We…

材料科学 · 物理学 2012-10-12 Gautam Mukhopadhyay , Harihar Behera

We study the quantum nucleation in a thin ferromagnetic film placed in a magnetic field at an arbitrary angle. The dependence of the quantum nucleation and the temperature of the crossover from thermal to quantum regime on the direction and…

凝聚态物理 · 物理学 2009-10-30 Gwang-Hee Kim

The near-field Coulomb interaction between a nano-emitter and a graphene monolayer results in strong F\"orster-type resonant energy transfer and subsequent fluorescence quenching. Here, we investigate the distance dependence of the energy…

We develop a theory for density, disorder, and temperature dependent electrical conductivity of bilayer graphene in the presence of long-range charged impurity scattering as well as an additional short-range disorder of independent origin,…

介观与纳米尺度物理 · 物理学 2010-04-21 S. Das Sarma , E. H. Hwang , E. Rossi

We predict unusual (for non-relativistic quantum mechanics) electron states in graphene, which are localized within a finite-width potential barrier. The density of localized states in the sufficiently high and/or wide graphene barrier…

介观与纳米尺度物理 · 物理学 2007-12-11 V. A. Yampol'skii , S. E. Savel'ev , Franco Nori

The thermal conductivity of doped graphene flake of finite size is investigated with emphasis on the influence of mass of substituting atoms on this property. It is shown that the graphene doping by small concentrations of relatively heavy…

介观与纳米尺度物理 · 物理学 2012-09-26 Vadym Adamyan , Vladimir Zavalniuk

Reflectance and transmittance of graphene in the optical region are analyzed as a function of frequency, temperature, and carrier density. We show that the optical graphene properties are determined by the direct interband electron…

介观与纳米尺度物理 · 物理学 2009-11-13 L. A. Falkovsky

We report observations of well developed half integer quantum Hall effect (QHE) on mono layer graphene films of 7 mm \times 7 mm in size. The graphene films are grown by chemical vapor deposition (CVD) on copper, then transferred to SiO_{2}…

介观与纳米尺度物理 · 物理学 2015-05-30 Tian Shen , Wei Wu , Qingkai Yu , Curt A Richter , Randolph Elmquist , David Newell , Yong P. Chen

We study an epitaxial graphene monolayer with bilayer inclusions via magnetotransport measurements and scanning gate microscopy at low temperatures. We find that bilayer inclusions can be metallic or insulating depending on the initial and…