Efficient organometallic spin filter between single-wall carbon nanotube or graphene electrodes

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

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We present a theoretical study of spin transport in a class of molecular systems consisting of an organometallic benzene-vanadium cluster placed in between graphene or single-wall carbon-nanotube-model contacts. Ab initio modeling is performed by combining spin density functional theory and nonequilibrium Green's function techniques. We consider weak and strong cluster-contact bonds. Depending on the bonding we find from 73% (strong bonds) up to 99% (weak bonds) spin polarization of the electron transmission, and enhanced polarization with increased cluster length.
Original languageEnglish
JournalPhysical Review Letters
Publication date2007
Volume98
Issue19
Pages197202
ISSN0031-9007
DOIs
StatePublished

Bibliographical note

Copyright 2007 American Physical Society

CitationsWeb of Science® Times Cited: 69

Keywords

  • MAGNETISM, SANDWICH CLUSTERS, MOLECULAR SPINTRONICS, COHERENT TRANSPORT, CHAIN
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