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Giant magnetoresistance of multiwall carbon nanotubes: Modeling the tube/ferromagnetic-electrode burying contact

Krompiewski, Stefan ; Gutiérrez, Rafael ; Cuniberti, Gianaurelio
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Date of publication of this fulltext: 05 Aug 2009 13:31


Abstract

We report on the giant magnetoresistance (GMR) of multiwall carbon nanotubes with ultra small diameters. In particular, we consider the effect of the inter-wall interactions and the lead/nanotube coupling. Comparative studies have been performed to show that in the case when all walls are well coupled to the electrodes, the so-called inverse GMR can appear. The tendency towards a negative GMR ...

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