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Giant magnetoresistance of nickel-contacted carbon nanotubes

Research output: Contribution to journalJournal article

Published

Article number042201
Journal publication date2007
JournalJournal of Physics: Condensed Matter
Journal number4
Volume19
Number of pages7
Pages-
Original languageEnglish

Abstract

We present ab initio theoretical results for the giant magnetoresistance of single-wall carbon nanotubes (CNT) in contact with nickel electrodes. These show that Ni atoms located on the surface or axis of CNT contacts can induce a significant magnetic moment on the carbon atoms. For non-gated, undoped CNTs, this produces room-temperature GMR ratios of between 45% and 100% of the anti-aligned conductance.