The Spin Transport of the Coblt Dimers with Different Directions

Abstract:

In this paper, the spin transport properties of the coblt dimers parrallel to the transport direction and perpendicular to ransprot direction are investigated by using the first principle analysis. Calculation shows that both the coblt dimers parrallel to the transport direction and perpendicular to ransprot direction give obvious spin polarized density of states and current. It is found that the dimer parrallel to the transport direction have larger spin polarization current.The spin polarized efficiency for the parrallel dimer increase steadily with the increase of the bias voltage. But the the spin polarization for the transverse dimer changes greatly.

• Periodical: Applied Mechanics and Materials (Volumes 543-547)
• Pages: 3947-3950
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.543-547.3947
• Online since: March 2014
• Authors: Shi Wei Ren*
• Keywords: Ab Initio Calculation, Coblt Dimer, Density of States, Spin Polarization Transport

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