Local defects and ferromagnetism in graphene layers
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TLDR
In this article, the changes in the electronic structure induced by lattice defects in graphene planes were studied and it was shown that lattice distortions give rise to localized states at the Fermi level.Abstract:
We study the changes in the electronic structure induced by lattice defects in graphene planes. In many cases, lattice distortions give rise to localized states at the Fermi level. Electron-electron interactions lead to the existence of local moments. The RKKY interaction between these moments is always ferromagnetic, due to the semimetallic properties of graphene.read more
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Metal-semiconductor (semimetal) superlattices on a graphite sheet with vacancies
TL;DR: In this article, it was found that periodically closely spaced vacancies on a graphite sheet cause a significant rearrangement of its electronic spectrum: metallic waveguides with a high density of states near the Fermi level are formed along the vacancy lines.
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Anomalous behaviour of magnetic coercivity in graphene oxide and reduced graphene oxide
TL;DR: In this article, the authors present the temperature dependence of the magnetic coercivity of reduced graphene oxide (RGO) and reduced graphite (Goparajan et al., 2013) with decreasing temperature.
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DFT calculations of graphene monolayer in presence of Fe dopant and vacancy
TL;DR: In this article, the effects of Fe doping and vacancies on the electronic, magnetic and optical properties of impure graphene are studied by density functional theory based calculations and the conductive behavior is revealed for the various defected graphene by means of electronic density of states.
Journal ArticleDOI
Metal-semiconductor (semimetal) superlattices on a graphite sheet with vacancies
TL;DR: In this article, it was found that periodically closely spaced vacancies on a graphite sheet cause a significant rearrangement of its electronic spectrum: metallic waveguides with a high density of states near the Fermi level are formed along the vacancy lines.
Journal ArticleDOI
Friedel oscillations: Decoding the hidden physics
TL;DR: In this article, the impurity-induced Friedel oscillations allow one to probe in an unexpected and quite remarkable manner the electronic properties of two-dimensional systems such as graphene or high-temperature superconductors.
References
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TL;DR: In this paper, a perturbation calculation which starts with wave functions of the two-dimensional lattice and is applied to the three-dimensional graphite lattice is described and general features of the structure of the $\ensuremath{\pi}$ bands in the neighborhood of the zone edge are obtained and are expressed in terms of appropriate parameters.
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Induced magnetic ordering by proton irradiation in graphite.
TL;DR: Evidence that proton irradiation of energy 2.25 MeV on highly oriented pyrolytic graphite samples triggers ferro- or ferrimagnetism is provided and magnetic ordering is stable at room temperature.
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Non-Fermi liquid behavior of electrons in the half-filled honeycomb lattice (A renormalization group approach)
TL;DR: In this paper, a system of electrons in the two-dimensional honeycomb lattice with Coulomb interactions is described by a renormalizable quantum field theory similar but not equal to QED3.
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Magnetic nanographite
TL;DR: In this paper, it was shown that hydrogenation of nanographite is able to induce finite magnetization and demonstrated the spontaneous magnetism of a graphene ribbon in which each carbon is bonded to two hydrogen atoms at one edge and to a single hydrogen atom at another edge.