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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.

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RKKY Interaction in Graphene at Finite Temperature

TL;DR: Kogan et al. as mentioned in this paper showed that the approach based on Matsubara formalism and perturbation theory for the thermodynamic potential in the imaginary time and coordinate representation which was used then, can be easily generalized and calculate RKKY interaction between the magnetic impurities at finite temperature.
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A First-Principles Investigation of the Carrier Doping Effect on the Magnetic Properties of Defective Graphene

TL;DR: In this article, the effects of carrier doping on the magnetic properties of defective graphene with a hydrogen chemisorbed single-atom vacancy (H-GSV) were investigated by performing extensive spin-polarized first-principles calculations.
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Magnetic impurity in the vicinity of a vacancy in bilayer graphene

TL;DR: In this paper, a quantum Monte Carlo method was used to study a magnetic impurity located next to a vacancy in Bernal stacked bilayer graphene. And they found that the magnetic property of the adatom located on the adjacent site of the vacancy depends on whether the vacancy belongs to A or B sublattice.
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Half-metallic transition for ZGNRs adsorbing porphine molecules under an in-plane external electric field

TL;DR: In this article , a zigzag graphene nanoribbon absorbing the porphine molecules with different manners under an in-plane external electric field was studied and it was shown that the sensitivity of magnetic response for the asymmetry structure model is superior to the symmetry one.
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Effect of Superparamagnetic Fe 3 O 4 Nanoparticles on Schottky Barriers of Graphene

TL;DR: In this paper, the effect of superparamagnetic Fe3O4 nanoparticles on the Schottky barrier of graphene was demonstrated, and it was shown that these nanoparticles decorated on the surface of the graphene surface can dramatically modify the barrier.
References
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Journal ArticleDOI

Electric Field Effect in Atomically Thin Carbon Films

TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
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Band Structure of Graphite

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.
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