Controlled contact to a C-60 molecule

Publication: Research - peer-reviewJournal article – Annual report year: 2007

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The tip of a low-temperature scanning tunneling microscope is approached towards a C-60 molecule adsorbed at a pentagon-hexagon bond on Cu(100) to form a tip-molecule contact. The conductance rapidly increases to approximate to 0.25 conductance quanta in the transition region from tunneling to contact. Ab-initio calculations within density functional theory and nonequilibrium Green's function techniques explain the experimental data in terms of the conductance of an essentially undeformed C-60. The conductance in the transition region is affected by structural fluctuations which modulate the tip-molecule distance.
Original languageEnglish
JournalPhysical Review Letters
Publication date2007
Volume98
Issue6
Pages065502
ISSN0031-9007
DOIs
StatePublished

Bibliographical note

Copyright 2007 American Physical Society

CitationsWeb of Science® Times Cited: 81

Keywords

  • TRANSPORT, QUANTIZED CONDUCTANCE, DNA-MOLECULES, SCANNING-TUNNELING-MICROSCOPY, POINT-CONTACT
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