Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2004-02-13
Physical Review B 69, 155423 (2004)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
5 pages, 5 figures
Scientific paper
10.1103/PhysRevB.69.155423
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 depends on the inter-wall interaction and on the nanotube le ngth. If, however, the inner nanotubes are out of contact with one of the electrodes, the GMR remains positive even for relatively strong inter-wall interactions regardless of the outer nanotube length. These results shed additional light on recently reported experimental data, where an inverse GMR was found in some multiwall carbon nanotube samples.
Cuniberti Gianaurelio
Gutierrez Raul
Krompiewski S.
No associations
LandOfFree
Giant magnetoresistance of multiwall carbon nanotubes: modeling the tube/ferromagnetic-electrode burying contact does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Giant magnetoresistance of multiwall carbon nanotubes: modeling the tube/ferromagnetic-electrode burying contact, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Giant magnetoresistance of multiwall carbon nanotubes: modeling the tube/ferromagnetic-electrode burying contact will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-85165