作者: 臆斷 時間: 2025-3-21 23:55 作者: Communal 時間: 2025-3-22 02:03
Angela Karp,Peter G. Isaac,David S. Ingramonal groups can lead to edge buckling to relieve strain, folding, rolling and even tube formation. We discuss the topological possibilities at a two-dimensional graphene edge, and under what circumstances we expect different edge topologies to occur. Density functional calculations are used to explore in more depth different graphene edge types.作者: 仔細閱讀 時間: 2025-3-22 08:19
https://doi.org/10.1007/978-981-13-3633-1raphene appears to be dependent on the flake size and geometry with respect to the strain axis. It is shown that the embedded flakes can be treated as ideal plates and their behavior can be described by Euler mechanics.作者: 臭了生氣 時間: 2025-3-22 10:52
https://doi.org/10.1007/978-3-030-83217-9gnetization. External fields coupled to the corresponding local order parameters are dramatically enhanced by the interactions. We also derive a non-BCS gap equation, suggesting that spontaneous emergence of Kekulé, staggered density or magnetization can arise at intermediate values of the electromagnetic coupling.作者: ETHER 時間: 2025-3-22 15:28 作者: ETHER 時間: 2025-3-22 19:06 作者: 內(nèi)疚 時間: 2025-3-23 00:42
Graphene Edge Structures: Folding, Scrolling, Tubing, Rippling and Twisting,onal groups can lead to edge buckling to relieve strain, folding, rolling and even tube formation. We discuss the topological possibilities at a two-dimensional graphene edge, and under what circumstances we expect different edge topologies to occur. Density functional calculations are used to explore in more depth different graphene edge types.作者: 剛開始 時間: 2025-3-23 04:21
Axial Deformation of Monolayer Graphene under Tension and Compression,raphene appears to be dependent on the flake size and geometry with respect to the strain axis. It is shown that the embedded flakes can be treated as ideal plates and their behavior can be described by Euler mechanics.作者: Relinquish 時間: 2025-3-23 09:04 作者: DRILL 時間: 2025-3-23 10:42
Molecular Techniques in Crop Improvementty and lineshape asymmetry in the optical conductivity provides thus a new suitable tool to characterize multilayer graphenes and to investigate the role of the underlying electron-lattice interaction.作者: 希望 時間: 2025-3-23 13:56 作者: JOG 時間: 2025-3-23 19:36
Elastic Moduli in Graphene Versus Hydrogen Coverage,on loading than the one calculated for ideal graphene. Nevertheless, the corresponding Young modulus shows minor variations as function of coverage. Furthermore, we provide evidence that hydrogenation only marginally affects the Poisson ratio.作者: 修飾語 時間: 2025-3-24 01:46
Synthesis of Graphene Films on Copper Substrates by CVD of Different Precursors,, based on the fast extraction from the hot zone of the furnace, was implemented allowing for rapid decrease of the temperature below . in few seconds. Samples grown under different conditions were analyzed by SEM, Raman spectroscopy and XPS with the aim to assess their characteristics and to refine the growth process.作者: ERUPT 時間: 2025-3-24 05:32
Ritus Method and SUSY-QM: Theoretical Frameworks to Study the Electromagnetic Interactions in Graphe. We show how, for some class of external static magnetic fields, the graphene hamiltonian can be cast into a hamiltonian with quantum mechanical supersymmetric properties, leading us to an exactly solvable model. As an example of these two formalisms we work out the canonical case of a uniform constant magnetic field.作者: Pulmonary-Veins 時間: 2025-3-24 09:01
Molecular Techniques for Studying Viruseson loading than the one calculated for ideal graphene. Nevertheless, the corresponding Young modulus shows minor variations as function of coverage. Furthermore, we provide evidence that hydrogenation only marginally affects the Poisson ratio.作者: minion 時間: 2025-3-24 13:49 作者: GRATE 時間: 2025-3-24 18:10 作者: 承認 時間: 2025-3-24 20:11
Understanding Chemical Reactivitybetween . and . hybridization of the interface atoms. We find a strong preferential disposition towards an . hybridization for the case of the C face, whereas towards the . scheme for the Si face. Notwithstanding purely quantitative, this mismatch is important and reflects the strength of the . bond in Si and C.作者: Guaff豪情痛飲 時間: 2025-3-25 01:57 作者: POLYP 時間: 2025-3-25 06:47 作者: surmount 時間: 2025-3-25 07:55 作者: 無所不知 時間: 2025-3-25 14:29
https://doi.org/10.1007/978-3-319-00978-0or making graphene. Herein, we describe an intercalation method to make clean graphene that has good electrical properties. The new method is based on an earlier procedure to make expanded graphite. Our method leads to the production of graphene.作者: 光明正大 時間: 2025-3-25 17:05 作者: 牛的細微差別 時間: 2025-3-25 21:09
Interface Electronic Differences Between Epitaxial Graphene Systems Grown on the Si and the C Face between . and . hybridization of the interface atoms. We find a strong preferential disposition towards an . hybridization for the case of the C face, whereas towards the . scheme for the Si face. Notwithstanding purely quantitative, this mismatch is important and reflects the strength of the . bond in Si and C.作者: 愛花花兒憤怒 時間: 2025-3-26 01:08 作者: 隼鷹 時間: 2025-3-26 05:30 作者: 使激動 時間: 2025-3-26 11:49 作者: 解脫 時間: 2025-3-26 13:25 作者: 橫截,橫斷 時間: 2025-3-26 19:28
Strain Effect on the Electronic and Plasmonic Spectra of Graphene,itations. We evaluate of the dynamical polarization and recover the plasmonic spectrum, within the random phase approximation (RPA). We explicitly consider local field effects (LFE). Thus, we are able to account for plasmons of any wavelength as a function of strain.作者: 打擊 時間: 2025-3-26 23:36 作者: 名詞 時間: 2025-3-27 03:05
Elastic Moduli in Graphene Versus Hydrogen Coverage,ted graphene and we actually compute them by first principles. We argue that hydrogenation generally leads to a much smaller longitudinal extension upon loading than the one calculated for ideal graphene. Nevertheless, the corresponding Young modulus shows minor variations as function of coverage. F作者: ARENA 時間: 2025-3-27 07:54 作者: Headstrong 時間: 2025-3-27 09:57 作者: 吞噬 時間: 2025-3-27 13:55 作者: Ejaculate 時間: 2025-3-27 18:49
Tailoring the Electronic Structure of Epitaxial Graphene on SiC(0001): Transfer Doping and Hydrogenonic applications. However, hurdles such as strong electron doping and low carrier mobility might sensibly limit the prospects of graphene on SiC(0001). In this work we present and discuss two different approaches that allow for a precise tailoring of the band-structure of graphene on SiC(0001): non作者: 可轉(zhuǎn)變 時間: 2025-3-28 00:56 作者: ROOF 時間: 2025-3-28 03:57
Towards a Graphene-Based Quantum Interference Device,eates an electric field perpendicular to the current flow and shifts energy levels of the two arms of the ring. A charge carrier being injected from the source at a given energy couples therefore to different states of the arms. Those states can be in or out of phase at the drain, resulting in inter作者: 樹膠 時間: 2025-3-28 09:12 作者: 手工藝品 時間: 2025-3-28 11:02
Graphene Edge Structures: Folding, Scrolling, Tubing, Rippling and Twisting,ain and dislocation formation. Two-dimensional crystal lattices, of which graphene is the archetype, are terminated by lines. The additional available dimension at such interfaces opens up a range of new topological interface possibilities. We show that graphene sheet edges can adopt a range of topo作者: SUGAR 時間: 2025-3-28 16:54 作者: overbearing 時間: 2025-3-28 20:33 作者: 展覽 時間: 2025-3-29 00:50
Synthesis of Graphene Films on Copper Substrates by CVD of Different Precursors,tures as gas precursors. The growth processes were performed near . both at atmospheric and low pressures. A system for the fast cooling of the sample, based on the fast extraction from the hot zone of the furnace, was implemented allowing for rapid decrease of the temperature below . in few seconds作者: IRK 時間: 2025-3-29 05:12 作者: Fatten 時間: 2025-3-29 08:56
A Chemists Method for Making Pure Clean Graphene,erest of physicists in graphene was enormous compared to that of chemists. This probably results from the absence of a well-established large scale method to produce graphene. Therefore, the most important role chemists can play is the establishment of an inexpensive and simple wet-chemical method f作者: concubine 時間: 2025-3-29 14:05
The Effect of Atomic-Scale Defects on Graphene Electronic Structure,es, holes and/or substitutional dopants. This feature, apart from being directly usable in molecular sensor devices, can also be employed to tune graphene electronic properties. Here we focus on those basic features of atomic-scale defects that can be useful for material design. Starting with isolat作者: cuticle 時間: 2025-3-29 16:45
Ritus Method and SUSY-QM: Theoretical Frameworks to Study the Electromagnetic Interactions in Graphraphene, the massless limit of our findings is of direct relevance. We present the Ritus formalism to obtain the fermion propagator in the general case. We show how, for some class of external static magnetic fields, the graphene hamiltonian can be cast into a hamiltonian with quantum mechanical sup作者: JAUNT 時間: 2025-3-29 20:46
Transmission Electron Microscopy Study of Graphene Solutions,yrrolidone. This approach allows processing of large quantities of material, with a yield of 35% of the starting graphite, producing large, micron size, membranes composed of only few graphenes. The characterization of the solutions reveals the crumpled folded structure of the graphene membranes and作者: 怎樣才咆哮 時間: 2025-3-30 01:17
Strain Effect on the Electronic and Plasmonic Spectra of Graphene,yer on the modulus and direction of applied uniaxial strain. While the Dirac cone approximation, albeit with a deformed cone, is robust for sufficiently small strain, band dispersion linearity breaks down along a given direction, corresponding to the development of anisotropic massive low-energy exc作者: OASIS 時間: 2025-3-30 07:49
https://doi.org/10.1007/978-3-319-31254-5roduction of graphene films, the deep understanding of its mechanism becomes mandatory. In the case of nickel, which represents an economically viable catalytic substrate, the solubility of carbon is significant enough so that the growth mechanism proceeds in at least two steps: the dissolution of c作者: facetious 時間: 2025-3-30 11:14 作者: 確保 時間: 2025-3-30 12:36 作者: saturated-fat 時間: 2025-3-30 17:50 作者: Crepitus 時間: 2025-3-30 23:47
https://doi.org/10.1007/978-1-4899-8050-2ice. This arrangement is shown to be favored by progressive preferential sticking events, while its particular lattice symmetry guarantees the presence of a wide band gap. With the help of first principles DFT and many-body calculations we find this structure to be an insulator, similarly to graphan作者: Enrage 時間: 2025-3-31 01:10
https://doi.org/10.1007/978-3-642-70544-1onic applications. However, hurdles such as strong electron doping and low carrier mobility might sensibly limit the prospects of graphene on SiC(0001). In this work we present and discuss two different approaches that allow for a precise tailoring of the band-structure of graphene on SiC(0001): non作者: Nomogram 時間: 2025-3-31 08:46
Understanding Chemical Reactivityaxial graphene/SiC interface in the case of Si and C face growth [i.e. growth on the SiC(0001) and the . surfaces respectively]. We argue that when the SiC substrate below the graphene films reconstructs with no additional adatoms, the observed electronic differences are the outcome of an interplay 作者: 翅膀拍動 時間: 2025-3-31 10:20
Molecular Theory of the Living Celleates an electric field perpendicular to the current flow and shifts energy levels of the two arms of the ring. A charge carrier being injected from the source at a given energy couples therefore to different states of the arms. Those states can be in or out of phase at the drain, resulting in inter作者: NUDGE 時間: 2025-3-31 16:21 作者: 宣稱 時間: 2025-3-31 21:24
Angela Karp,Peter G. Isaac,David S. Ingramain and dislocation formation. Two-dimensional crystal lattices, of which graphene is the archetype, are terminated by lines. The additional available dimension at such interfaces opens up a range of new topological interface possibilities. We show that graphene sheet edges can adopt a range of topo作者: Gingivitis 時間: 2025-3-31 21:47
https://doi.org/10.1007/978-981-13-3633-1ns, for low levels of tensile and compressive strain. In tension, important physical phenomena such as the G and 2D band splitting are discussed. The results can be used to quantify the amount of uniaxial strain, providing a fundamental tool for graphene-based nanoelectronics. In compression, graphe作者: RECUR 時間: 2025-4-1 03:03
Molecular Typing in Bacterial Infectionsis 4H-SiC (0001) and by C segregation on Ni thin films from a solid carbon source. Transmission electron microscopy in different configurations, i.e. cross-section and plan view, was used to get information on the number of graphene layers as well as on the rotational order between the layers and wi作者: 調(diào)整校對 時間: 2025-4-1 06:35 作者: 強壯 時間: 2025-4-1 11:39
https://doi.org/10.1007/978-3-030-83217-9-dimensional quantum .(1) gauge field. The infrared fixed point of the theory is analyzed by exact Renormalization Group methods. We find that the interacting response functions have a large distance decay described by anomalous critical exponents, which vary continuously with the strength of the el作者: 符合國情 時間: 2025-4-1 15:20
