The number of transmission channels through a single-molecule junction

Abstract

We calculate transmission eigenvalue distributions for Pt-benzene-Pt and Pt-butadiene-Pt junctions using realistic state-of-the-art many-body techniques. An effective field theory of interacting $\pi$-electrons is used to include screening and van der Waals interactions with the metal electrodes. We find that the number of dominant transmission channels in a molecular junction is equal to the degeneracy of the molecular orbital closest to the metal Fermi level.

9 pages, 8 figures

References in corpus (5)

• Renormalization of Molecular Electronic Levels at Metal-Molecule Interfaces
• The Kondo effect in C${}_{60}$ single-molecule transistors
• Giant Thermoelectric Effect from Transmission Supernodes
• Renormalization of Molecular Quasiparticle Levels at Metal-Molecule Interfaces: Trends Across Binding Regimes
• Many-body theory of electronic transport in single-molecule heterojunctions