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Title: Nonlocal spin transport in single-walled carbon nanotube networks
Authors: Yang, H. 
Itkis, M.E.
Moriya, R.
Rettner, C.
Jeong, J.-S.
Pickard, D.S. 
Haddon, R.C.
Parkin, S.S.P.
Issue Date: 13-Feb-2012
Citation: Yang, H., Itkis, M.E., Moriya, R., Rettner, C., Jeong, J.-S., Pickard, D.S., Haddon, R.C., Parkin, S.S.P. (2012-02-13). Nonlocal spin transport in single-walled carbon nanotube networks. Physical Review B - Condensed Matter and Materials Physics 85 (5) : -. ScholarBank@NUS Repository.
Abstract: Spin transport in carbon-based materials has stimulated much interest due to their ballistic conductance and a long phase coherence length. While much research has been conducted on individual carbon nanotubes, current growth and placement techniques are incompatible with large-scale fabrication. Here, we report on nonlocal spin injection and detection in single-walled carbon nanotube networks. We observe spin transport over a distance of 1 μm and extract a spin diffusion length of 1.6-2.4 μm with an injected spin polarization from CoFe into nanotube network of 18%-41%. Our observations demonstrate that spin transport is possible in carbon nanotube networks due to the formation of natural tunnel barriers between nanotubes and metallic contacts. © 2012 American Physical Society.
Source Title: Physical Review B - Condensed Matter and Materials Physics
ISSN: 10980121
DOI: 10.1103/PhysRevB.85.052401
Appears in Collections:Staff Publications

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