Electron transport through monovalent atomic wires

Publication: Research - peer-reviewJournal article – Annual report year: 2004

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Using a first-principles density-functional method we model electron transport through linear chains of monovalent atoms between two bulk electrodes. For noble-metal chains the transport resembles that for free electrons over a potential barrier whereas for alkali-metal chains resonance states at the chain determine the conductance. As a result, the conductance for noble-metal chains is close to one quantum of conductance, and it oscillates moderately so that an even number of chain atoms yields a higher value than an odd number. The conductance oscillations are large for alkali-metal chains and their phase is opposite to that of noble-metal chains.
Original languageEnglish
JournalPhysical Review B (Condensed Matter and Materials Physics)
Publication date2004
Volume69
Issue12
Pages125409
ISSN1098-0121
DOIs
StatePublished

Bibliographical note

Copyright (2004) American Physical Society.

CitationsWeb of Science® Times Cited: 95

Keywords

  • GOLD ATOMS, CONDUCTANCE, CONTACTS
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