Electron transport through monovalent atomic wires

Y. J. Lee, Mads Brandbyge, M. J. Puska, Jeremy Philip Taylor, Kurt Stokbro, R. M. Nieminen

    Research output: Contribution to journalJournal articleResearchpeer-review

    522 Downloads (Pure)

    Abstract

    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
    Volume69
    Issue number12
    Pages (from-to)125409
    ISSN0163-1829
    DOIs
    Publication statusPublished - 2004

    Bibliographical note

    Copyright (2004) American Physical Society.

    Keywords

    • GOLD ATOMS
    • CONDUCTANCE
    • CONTACTS

    Fingerprint Dive into the research topics of 'Electron transport through monovalent atomic wires'. Together they form a unique fingerprint.

    Cite this