搜索结果: 1-10 共查到“理论物理学 graphene”相关记录10条 . 查询时间(0.062 秒)
Ab initio calculation of ideal strength and phonon instability of graphene in tension
strength phonon instability graphene
2012/8/8
Graphene-based sp2-carbon nanostructures such as carbon nanotubes and nanofibers can fail
near their ideal strengths due to their exceedingly small dimensions. We have calculated the
phonon spectra ...
On the zero-field orbital magnetic susceptibility of Bloch electrons in graphene-like solids: Some rigorous results
Diamagnetism zero-field susceptibility two-dimensional electrons gas graphene semiconductors
2012/4/17
Starting with a nearest-neighbors tight-binding model, we rigorously investigate the bulk zero-field orbital susceptibility of a non-interacting Bloch electrons gas in graphene-like solids at fixed te...
We investigate two seemingly disjoint definitions of helicity, one commonly used in particle physics, the other one used when studying bilinear covariants of Clifford algebras. We can prove that the `...
Chiral tunneling in single and bilayer graphene
Chiral tunneling single-layer bilayer graphene its semiclassical theory
2011/7/28
Abstract: We review chiral (Klein) tunneling in single-layer and bilayer graphene and present its semiclassical theory, including the Berry phase and the Maslov index. Peculiarities of the chiral tunn...
A density-functional approach on the hexagonal graphene lattice is developed using an exact
numerical solution to the Hubbard model as the reference system. Both nearest-neighbour and up
to third ne...
Graphene as a quantum surface with curvature-strain preserving dynamics
Graphene preserving dynamics
2010/11/19
We discuss how the curvature and the strain density of the atomic lattice generate the quantization of graphene sheets as well as the dynamics of geometric quasiparticles propagating along the constan...
Quantum Capacitance vs Chemical Potential Universal Curve and Interface Trap Parameter Extraction in Graphene Gated Structures
Quantum Capacitance hemical Potential Universal Curve Interface Trap Parameter Extraction Graphene Gated Structures
2010/11/25
We study influence of the interface traps unavoidably occurring at or near the interface
between the graphene sheets and the insulating substrate or top gate oxide on the
capacitance characteristics...
Comparison of the hydrodynamic and Dirac models of the dispersion interaction between graphene and H, He${}^{\ast}$, or Na atoms
Comparison the hydrodynamic Dirac models the dispersion interaction between graphene
2010/10/29
The van der Waals and Casimir-Polder interaction of different atoms with graphene is investigated using the Dirac model which assumes that the energy of quasiparticles is linear with respect to the mo...
Unveiling quantum Hall transport by Efros-Shklovskii to Mott variable range hopping transition with Graphene
Mott variable range transition
2010/10/26
The quantum localization in the quantum Hall regime is revisited using Graphene monolayers
with accurate measurements of the longitudinal resistivity as a function of temperature and current.We exper...
Monopole and Topological Electron Dynamics in Adiabatic Spintronic and Graphene Systems
Monopole and Topological Electron Dynamics Adiabatic Spintronic Graphene Systems
2010/4/9
A unified theoretical treatment is presented to describe the physics of electron dynamics in semiconductor and graphene systems. Electron spin fast alignment with the Zeeman magnetic field (physical o...