Spin dependent transport of ``nonmagnetic metal/zigzag nanotube encapsulating magnetic atoms/nonmagnetic metal'' junctions

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Towards a novel magnetoresistance (MR) device with a carbon nanotube, we propose ``nonmagnetic metal/zigzag nanotube encapsulating magnetic atoms/nonmagnetic metal'' junctions. We theoretically investigate how spin-polarized edges of the nanotube and the encapsulated magnetic atoms influence on transport. When the on-site Coulomb energy divided by the magnitude of transfer integral, $U/|t|$, is larger than 0.8, large MR effect due to the direction of spins of magnetic atoms, which has the magnitude of the MR ratio of about 100%, appears reflecting such spin-polarized edges.
4 pages, 3 figures, accepted for publication in Synth. Metals

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Mesoscale and Nanoscale Physics, Materials Science, Computational Engineering, Finance, and Science, Chemical Physics, Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/25544

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0412587
 http://arxiv.org/abs/cond-mat/0412587
 Synthetic Metals, Volume 152, Issues 1-3, 20 September 2005, Pages 465-468
 doi:10.1016/j.synthmet.2005.07.187

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arXiv