Modeling of inelastic transport in one-dimensional metallic atomic wires

Abstract

Inelastic effects in electron transport through nano-sized devices are addressed with a method based on nonequilibrium Green's functions (NEGF) and perturbation theory to infinite order in the electron-vibration coupling. We discuss the numerical implementation which involves an iterative scheme to solve a set of coupled non-linear equations for the electronic Green's functions and the self-energies due to vibrations. To illustrate our method, we apply it to a one-dimensional single-orbital tight-binding description of the conducting electrons in atomic gold wires, and show that this simple model is able to capture most of the essential physics.

arXiv comment4 pages, 4 figures, Contribution to International Workshop on Computational Electronics (IWCE-10)

References in corpus (2)

• Onset of dissipation in ballistic atomic wires
• Inelastic scattering and local heating in atomic gold wires

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