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IOP Publishing, Semiconductor Science and Technology, 11(21), p. S78-S95, 2006

DOI: 10.1088/0268-1242/21/11/s11

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Nanospintronics with carbon nanotubes

Journal article published in 2006 by Audrey Cottet, Takis Kontos, Sangeeta Sahoo, H. Tin Man, Mahn-Soo Choï, Wolfgang Belzig, Christoph Bruder, Alberto F. Morpurgo, Christian Schönenberger
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This paper is available in a repository.

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Abstract

One of the actual challenges of spintronics is the realization of a spin-transistor allowing to control spin transport through an electrostatic gate. In this review, we report on different experiments which demonstrate a gate control of spin transport in a carbon nanotube connected to ferromagnetic leads. We also discuss some theoretical approaches which can be used to analyze spin transport in these systems. We emphasize the roles of the gate-tunable quasi-bound states inside the nanotube and the coherent spin-dependent scattering at the interfaces between the nanotube and its ferromagnetic contacts. Comment: 35 pages, 15 figures, some figures in gif