Resonant Features in Bilayer Nanoribbons in a Single Mode Regime with a Short Range Defect
Journal Title: Bulletin of Pure and Applied Sciences Sec. D – Physics - Year 2018, Vol 37, Issue 1
Abstract
We have studied resonant features in bilayer nanoribbon in a single mode regime with a short range defect. We have found the effect of edge disorder on the transport properties of a graphene nanoribbons and bilayer graphene nano-ribbons. We have developed an analytical approach that provides the exact results for the transmission coefficients of graphene nanoribbons. We have considered the case of bilayer graphene nanoribbons with zigzag and armchair edges. We have found that for the case of zigzag edge bilayer nanoribbon remain practically insensitive to the disorder situated close to the edges. This behavior is not related to the chiral edge state residing at the zigzg boundary, as this behavior persist into the few mode regime as well. It is related to the effective boundary condition at the zigzag edge which does not couple valleys, thus hindering the intervally scattering due to the edge disorder. The armchair edge mixes the valleys and it is found that the conductance of a graphene nanoribbons and a bilayer graphene nanoribbons is strongly affected by a small defect concentration. We have calculated the conductance in bilayer graphene nanoribbons with many defects on the basis of tight binding recursive Green’s function technique.
Authors and Affiliations
Gautam Kumar Sinha
Keywords
Related Articles
- EP ID EP527454
- DOI 10.5958/2320-3218.2018.00002.7
- Views 160
- Downloads 0
Relativistic Study of the Recoil Energy of Photon due to Nuclear and Atomic Transition in Mossbauer Effect
In this paper, we have discussed the non-relativistic and relativistic treatment of the recoil energy of photon due to the nuclear transition and atomic transition and calculated the total energy of the recoil event for...
Proton Impact K- Shell Ionization of Neon and Magnesium
In the present work, K-shell ionization cross-sections of Neon and Magnesium due to proton impact have been calculated through the Binary Encounter Approximation model. The effects of Coulomb deflection of the projectile...
Physical and Structural Studies of (30-x) BaO-xAl2O3-69.5B2O3-0.5MnO2 Glasses
(30-x) BaO-xAl2O3-69.5B2O3-0.5MnO2 (0 ≤ x ≤ 15 mol%) (BABM) glasses have been prepared using melt quench method. In the present work, the main focus on the role of Al2O3 in the glass composition. Differential scanning c...
Photoionization Spectroscopy of Lithium, Sodium and Potassium Nanoparticles in a Beam for the Metallic Work Function
We have used a modified particle source with a temperature controlled nozzle to measure the temperature dependence of the work function for Lithium, Sodium and Potassium. The temperature dependence of the work function a...
Signatures of next-nearest-neighbor (NNN) Antiferromagnetic Exchange Interaction on High-Tc Superconductivity Within t-t'-J-J' Model
The influence of the next-nearest-neighbor (NNN) antiferromagnetic interaction J' has been examined within t - t' - J - J' model in an exact technique. An 8-site square cluster is chosen as the representative of the syst...