In this paper, we study the plasmonic thermal conductance of ordered stacks of metallic nanorings in a host material. Using second quantized formalism of the Random Phase Approximation, we first determine the dispersion relations of surface plasmon waves on the stacks of nanorings. Then, using Landauer-Buttiker formalism, we determine the coefficient of plasmonic thermal conductance and heat cu...

disordered t-shaped graphene nanodevice (tgn) was designed and studied in this paper. we demonstrated the intrinsic transport properties of the tgn by using landauer approach. knowing the transmission probability of an electron the current through the system is obtained using landauer-buttiker formalism. the effects of single disorder on conductance, current and on the transport length scales a...

in this paper, we study the plasmonic thermal conductance of ordered stacks of metallic nanorings in a host material. using second quantized formalism of the random phase approximation, we first determine the dispersion relations of surface plasmon waves on the stacks of nanorings. then, using landauer-buttiker formalism, we determine the coefficient of plasmonic thermal conductance and heat cu...

We have measured shot noise in single-walled carbon nanotubes with good contacts at 4.2 K at low frequencies (f=600-850 MHz). We find a strong modulation of shot noise over the Fabry-Perot pattern; in terms of the differential Fano factor the variation ranges over 0.4-1.2. The shot noise variation, in combination with differential conductance, is analyzed using two (spin-degenerate) modes with ...

We report the transport behavior of an open-end metallic single wall carbon nanotube (SWCNT) with and without local structural defects using the non-equilibrium Green’s functions approach together with the density functional theory (DFT). The transmission spectra and the projected density of states for the devices such as SWCNT (3, 3), (4, 4), (5, 5) and (6, 6) with and without defects were com...

An electric current flowing on the Poly(dA)-poly(dT) DNA molecule structure has been calculated. The was calculated from transmission probabilities by employing Landauer-Buttiker formalism. Green’s function technique used for obtaining probabilities. modeled within tight-binding Hamiltonian model approach. takes into account electron hopping parameters which are dependent magnetic field as well...

In this work, we model the zero-bias conductance for the four different DNA strands that were used in conductance measurement experiment [A. K. Mahapatro, K. J. Jeong, G. U. Lee and D. B. Janes, Nanotechnology, 18, 195202 (2007)]. Our approach consists of three elements: (i) abinitio calculations of DNA, (ii) Green’s function approach for transport calculations and (iii) the use of two paramete...

Strain can tailor the band structures and properties of graphene nanoribbons (GNRs) with well-known emergent pseudo-magnetic fields corresponding pseudo-Landau levels (pLLs). We design one type zigzag GNR (ZGNR) reverse strains, producing opposite signs in lower upper half planes. Therefore, electrons propagate along interface as "snake states", experiencing Lorentz forces they cross zero field...

Hybrid structures based on graphene and carbon nanotubes (CNTs) are one of the most relevant modern nanomaterials for applications in various fields, including electronics. The variety topological architectures graphene/CNT hybrids requires a preliminary study their physical properties by silico methods. This paper is devoted to electronic electrical hybrid 2D with an island topology using self...

Disordered T-shaped graphene nanodevice (TGN) was designed and studied in this paper. We demonstrated the intrinsic transport properties of the TGN by using Landauer approach. Knowing the transmission probability of an electron the current through the system is obtained using Landauer-Buttiker formalism. The effects of single disorder on conductance, current and on the transport length scales a...