Bilayer Graphene
Topological confinement in an antisymmetric potential in bilayer graphene in the presence of a magnetic field
... We obtained the spectrum of electronic bound states that are localized at potential kinks in bilayer graphene, which can be created by antisymmetric gate potentials. For a single potential kink, the bound ...
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Transport measurements on ultra-clean dual-gated suspended bilayer graphene
... degeneracies are broken, as shown in figure 4d [17]. To conclude this section we have found that using our suspended bilayer graphene samples of high quality we can probe the rich physics offered by the ...
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Observation of Electron Phonon Couplings and Fano Re sonances in Epitaxial Bilayer Graphene
... In summary, in this work we focused on several charac- teristics of the infrared active OM mode in hydrogenated epitaxial bilayer graphene in Bernal stacking. A soften- ing and a strong enhancement of the ...
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Mapping local heterogeneity in open twisted bilayer graphene devices
... We introduce a new method to continuously map inhomogeneities of a moiré lattice and apply it to open-device twisted bilayer graphene (TBG). We show that the variation in the twist angle, which is ...
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Tunable fractional quantum Hall phases in bilayer graphene
... in graphene has received intense interest (8–14) since the combined spin and valley degrees of freedom are conjectured to yield novel FQHE states within an approximate SU(4) symmetry space (assuming relatively ...
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First Principles Calculations of Hydrogen Storage on Calcium Decorated, Boron Doped Bilayer Graphene
... Our calculations were carried out using DFT and VASP software packages. In the study, the supercell a 3 × 3 bilayer graphene contains 36 carbon atoms. The interaction potential of ions and electrons is ...
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Electronic properties of bilayer graphene in a steady magnetic field
... graphene where the asymmetry is caused by a larger density of impurities on the upper layer, laser radiation which produces an alternating electric field breaks the equilibrium. For a given direction of electric ...
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Multi-Wavelength Raman Characterization of Back-Gated Monolayer and Bilayer Graphene
... and bilayer graphene ...producing graphene sheets by scotch tape technique, Raman spectrometry used to distinguish between bilayer, mono layer and other few layer of ...and bilayer ...
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Electronic Properties of Twisted Bilayer Graphene in the Presence of a Magnetic Field
... twisted bilayer graphene, the lower energy bands become completely flat when the twist angle passes through certain specific values: the so- called “magic ...
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Structural determination of bilayer graphene on SiC(0001) using synchrotron radiation photoelectron diffraction
... and bilayer graphene grown on the Si-face of ...succeeding graphene layers are all rotated by 30° with respect to the SiC ...of graphene and comprises C atoms arranged in a honeycomb lattice ...
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Cyclotron resonance of the magnetic ratchet effect and second harmonic generation in bilayer graphene
... in bilayer graphene in order to apply the general equations to it, resulting in the simplified expressions ...in bilayer graphene leads to a valley current of large magnitude which, when ...
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Zero energy modes and valley asymmetry in the Hofstadter spectrum of bilayer graphene van der Waals heterostructures with hBN
... In this Article, we study fractal magnetic minibands in bilayer graphene (BLG) subject to a moir´ e superlattice perturbation due to an hBN underlay. The low-energy Hofstadter butterfly spectra of a BLG-hBN ...
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Bilayer graphene formed by passage of current through graphite: Evidence for a three-dimensional structure
... We used the technique of HAADF-STEM imaging to establish the three-dimensionality of the bilayer graphene structures. Both tilt sequences and individual images have been analysed. Tilt series were first ...
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Observation of Anomalous Resistance Behavior in Bilayer Graphene
... ripples induce predominantly short-range scattering. The observed height variation shows that the surface roughness beyond the atomic level is intrinsically present in bilayer graphene. Hence, one of the ...
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Controlled synthesis of bilayer graphene on nickel
... We report a uniform and low-defect synthesis of bilayer graphene on evaporated polycrystalline nickel films. We used atmospheric pressure chemical vapor deposition with ultra-fast substrate cooling after ...
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Unconventional quantum Hall effect and Berry’s phase 2pi in bilayer graphene
... 2L graphene originates from peculiar properties of its charge carriers that are chiral fermions with a finite mass, as discussed ...2L graphene by using the standard nearest-neighbour approximation ...
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Wavevector-dependent spin filtering and spin transport through magnetic barriers in graphene
... We study the spin-resolved transport through magnetic nanostructures in monolayer and bilayer graphene. We take into account both the orbital effect of the inhomogeneous perpendicular magnetic field as well ...
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Incommensurate heterostructures in momentum space
... To test the accuracy and speed of the approach for calculating the Density of States in (3.3) in practise, the low-energy density of states of 3 ◦ twisted bilayer graphene was chosen. We use the ...
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Hydrophilicity of graphene in water through transparency to polar and dispersive interactions
... on graphene-on- ice at 0 °C is 30° ± 5° which is only 13° greater than the water contact angle of pure ice and 30° smaller than the water contact angle of freshly exfoliated graphite (see Figure ...layer ...
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Layer dependent morphologies of silver on n layer graphene
... the graphene flakes onto an oxidized silicon ...suspended graphene flakes over the ...and bilayer graphene, ...supported graphene, respectively. Figure 4d presents the SEM image of the ...
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