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Tunneling rates in electron transport through double-barrier molecular junctions in a scanning tunneling microscope

Tunneling rates in electron transport through double-barrier molecular junctions in a scanning tunneling microscope

Proceedings of the National Academy of Sciences of the United States of America 102(25): 8832-8837

ISSN/ISBN: 0027-8424

PMID: 15956189

DOI: 10.1073/pnas.0501171102

The scanning tunneling microscope enables atomic-scale measurements of electron transport through individual molecules. Copper phthalocyanine and magnesium porphine molecules adsorbed on a thin oxide film grown on the NiAl(110) surface were probed. The single-molecule junctions contained two tunneling barriers, vacuum gap, and oxide film. Differential conductance spectroscopy shows that electron transport occurs via vibronic states of the molecules.

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Accession: 018194529

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