On the electrostatic potential profile in biased molecular wires

Abstract

The potential profile across a biased molecular junction is calculated within the framework of a simple Thomas-Fermi type screening model. In particular, the relationship between this profile and the lateral molecular cross section is examined. We find that a transition from a linear potential profile to a potential that drops mainly near the molecule-metal contacts occurs with increasing cross section width, in agreement with numerical quantum calculations.

6 pages, 5 figures, RevTeX4

References in corpus (1)

• Scanned Probe Microscopy of Electronic Transport in Carbon Nanotubes

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