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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/28488

Title: Contact-induced spin polarization in carbon nanotubes
Author: FERREIRA, MAURO
COEY, JOHN MICHAEL DAVID
Sponsor: Enterprise Ireland
Author's Homepage: http://people.tcd.ie/ferreirm
Keywords: Physics
Issue Date: 2004
Publisher: American Physical Society
Citation: Ferreira, Mauro S. and Sanvito, Stefano ���Contact-induced spin polarization in carbon nanotubes�� in Physical Review B, 69, (3), 2004, pp 035407-1 ��� 035407-6
Series/Report no.: Physical Review B
69
3
Abstract: Motivated by the possibility of combining spintronics with molecular structures, we investigate the conditions for the appearance of spin polarization in low-dimensional tubular systems by contacting them to a magnetic substrate. We derive a set of general expressions describing the charge transfer between the tube and the substrate and the relative energy costs. The mean-field solution of the general expressions provides an insightful formula for the induced spin polarization. Using a tight-binding model for the electronic structure we are able to estimate the magnitude and the stability of the induced moment. This indicates that a significant magnetic moment in carbon nanotubes can be observed.
Description: PUBLISHED
URI: http://dx.doi.org/10.1103/PhysRevB.69.035407
http://hdl.handle.net/2262/28488
ISSN: 1098-0121
Appears in Collections:Physics (Scholarly Publications)

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