Magnetic Response in a Zigzag Carbon Nanotube

Magnetic response of interacting electrons in a zigzag carbon nanotube threaded by a magnetic flux is investigated within a Hartree-Fock mean field approach. Following the description of energy spectra for both non-interacting and interacting cases we analyze the behavior of persistent current in individual branches of a nanotube. Our present investigation leads to a possibility of getting a filling-dependent metal-insulator transition in a zigzag carbon nanotube.Comment: 9 pages, 14 figure

A coarse-grained Monte Carlo approach to diffusion processes in metallic nanoparticles

A kinetic Monte Carlo approach on a coarse-grained lattice is developed for the simulation of surface diffusion processes of Ni, Pd and Au structures with diameters in the range of a few nanometers. Intensity information obtained via standard two-dimensional transmission electron microscopy imaging techniques is used to create three-dimensional structure models as input for a cellular automaton. A series of update rules based on reaction kinetics is defined to allow for a stepwise evolution in time with the aim to simulate surface diffusion phenomena such as Rayleigh breakup and surface wetting. The material flow, in our case represented by the hopping of discrete portions of metal on a given grid, is driven by the attempt to minimize the surface energy, which can be achieved by maximizing the number of filled neighbor cells

Another spin on graphene

10.1126/science.1204496Science3326027315-316SCIE

New directions in science and technology: Two-dimensional crystals

10.1088/0034-4885/74/8/082501Reports on Progress in Physics748-RPPH

Donor and acceptor levels in semiconducting transition-metal dichalcogenides

10.1103/PhysRevB.89.081406Physical Review B - Condensed Matter and Materials Physics898-PRBM

Field-effect control of tunneling barrier height by exploiting graphene's low density of states

Contains fulltext : 111503.pdf (publisher's version ) (Open Access

Two-dimensional multibit optoelectronic memory with broadband spectrum distinction

10.1038/s41467-018-05397-wNature Communications91296

Transport properties of pristine few-layer black phosphorus by van der Waals passivation in an inert atmosphere

10.1038/ncomms7647Nature Communications

Surface transfer doping induced effective modulation on ambipolar characteristics of few-layer black phosphorus

10.1038/ncomms7485Nature Communications