Graphene lattice

Part 2 book "The physics of graphene" includes content: Point defects; optics and response functions; the coulomb problem; crystal lattice dynamics, structure, and thermodynamics; gauge fields and strain engineering; scattering mechanisms and transport properties; spin effects and magnetism; graphene on hexagonal boron nitride; twisted bilayer graphene; many body effects in graphene.

285p oursky03 21-08-2023 4 2   Download

The single-orbital Anderson impurity model using graphene as the host material is considered for the case where the impurity is placed on top of a carbon atom of the graphene lattice. This is an excellent setup for the r = 1 pseudogap impurity model, where there exists a quantum phase transition from the free local moment phase to the Kondo screening phase.

12p vimelindagates 18-07-2022 6 2   Download

We theoretically investigate in this work the interplay between the intrinsic spin-orbit coupling (SOC) and electronelectron interaction on the magnetism in the graphene honeycomb lattice. Particularly, a phase diagram is here explored and studied by Kane-Mele-Hubbard (KMH) model combined with meanfield theory and self-consistent algorithm.

4p vigeneralmotors 13-07-2022 4 3   Download

Freestanding tin oxide-boron oxide/reduced graphene oxide (SnO2 -B2 O3 /rGO) nanocomposite anode was produced for Li-ion cells. This binder-free flexible paper anode structure was fabricated by combining SnO2 -B2 O3 composite and graphene oxide which were synthesized through the sol–gel method and Hummers’ method, respectively. Field emission gun scanning electron microscopy, high-resolution transmission electron microscopy, energy dispersive X-ray spectrometer, Fourier transform infrared spectroscopy, Raman spectroscopy, and X-ray diffraction were utilized to characterize anode materials.

14p tudichquannguyet 29-11-2021 4 0   Download

Graphene Quantum Dots (GQDs) are a type of material with a width of several nanometers (nm) and a thickness of a single layer or a few layers of carbon (C) atoms organized in hexagonal shape like a beehive. Since the lattice structure of GQDs only includes carbon atoms, they are a nanomaterial that is friendly to the environment and humans. They have many applications, with one of the main uses being a novel antimicrobial agent.

6p nguaconbaynhay12 01-06-2021 10 2   Download

The method is based on the analysis of time evolution of electron states in the real lattice space. The Chebyshev polynomials of the first kind are used to approximate the time evolution operator. We demonstrate that the developed method is powerful and efficient since the computational scaling law is linear. We invoked the method to study the electronic properties of special twisted bilayer graphene whose atomic structure is quasi-crystalline.

16p capheny 28-02-2020 22 1   Download

Graphene is a single carbon layer in a two-dimensional (2D) lattice. Its delocalized π bonds give rise to unique electronic properties, but these π bonds are easily influenced by the environment. Meanwhile, many publications present that the sensitivity of graphene is not only necessarily intrinsic to this material but also by external defect.

4p viminotaur2711 29-10-2019 20 2   Download

Graphene, a single layer of graphite formed by a repetitive hexagonal lattice, has recently raised extensive interest of the world-wide scientific community since it has been obtained successfully in 2004. The graphene is of significant value for the fundamental studies of condensed matter and quantum physics.

0p bi_bi1 09-07-2012 49 10   Download