Electron transport across molecular junctions is a rapidly growing topic at the borderline between physics and chemistry. We review calculations which were done in the Landauer transport formalism for monovalent systems, ranging from clusters to fullerenes. A realistic description of molecular conductance can be achieved by a density functional based approach to the calculation of the electroni...

A simple treatment of the nano-scale MOSFET in the spirit of the Landauer approach to transport in mesoscopic structures is described. First, the essential physics is illustrated by examining numerical simulations. Next, the analytical theory of the ballistic MOSFET is discussed, and finally, the role of scattering in nano-scale MOSFETs is discussed.

The Landauer formula provides a general scattering formulation of electrical conduction. Despite its utility, it has been mainly applied to the linear-response regime, and theory nonlinear response yet be fully developed. Here, we extend nonlinear-response regime. We show that while linear conductance is directly related transmission probability, given by derivatives with respect energy. This s...

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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...