Journal article
Efficient organometallic spin filter between single-wall carbon nanotube or graphene electrodes
Theoretical Nanotechnology, Department of Micro- and Nanotechnology, Technical University of Denmark1
Department of Micro- and Nanotechnology, Technical University of Denmark2
Theoretical Nanoelectronics Group, Theory Section, Department of Micro- and Nanotechnology, Technical University of Denmark3
Theory Section, Department of Micro- and Nanotechnology, Technical University of Denmark4
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.
Language: | English |
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Year: | 2007 |
Pages: | 197202 |
ISSN: | 10797114 and 00319007 |
Types: | Journal article |
DOI: | 10.1103/PhysRevLett.98.197202 |
ORCIDs: | Brandbyge, Mads |