On Symmetry Properties of The Corrugated Graphene System

The properties of the ballistic electron transport through a corrugated graphene system are analysed from the symmetry point of view. The corrugated system is modelled by a curved surface (an arc of a circle) connected from both sides to flat sheets. The spin–orbit couplings, induced by the curvature, give rise to equivalence between the transmission (reflection) probabilities of the transmitted (reflected) electrons with the opposite spin polarisation, incoming from opposite system sides. We find two integrals of motion that explain the chiral electron transport in the considered system.

Quasi-ballistic electron transport in atomic wires

This article describes quasi-ballistic electron transport in atomic wires. It begins with a review of experiments on the conduction properties for single metal atoms. Nearly all the information on the properties of such nanocontacts should be extracted from the current and voltage only. Nevertheless, a wide range of techniques has been developed to obtain detailed information. The article proceeds by considering various experimental techniques for characterizing single-atom contacts, along with their application for the study of conducting chains of individual metal atoms and for metal–molecule–metal junctions. Using metallic point contacts and molecular junctions that are of atomic size, it demonstrates that the transport of electrons can be quasi-ballistic and the deviations from perfect transmission can be quantified and interpreted.

Investigation of electronic transport under mechanical strain in a molecular junction composed of a polyyne bridge connected to SWCNT electrodes

A novel treatment to investigate ballistic electron transport under mechanical strain in a 1-D molecular bridge (polyyne) sandwiched by two SWCNT electrodes.