Nonlocal spin transport in single walled carbon nanotube networks
  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 nonlocal spin injection and detection in single wall carbon nanotube networks. We observe spin transport over a distance of 1 um, and extract a spin diffusion length of 1.6 - 2.4 um 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. 
Hyunsoo Yang, Mikhail E. Itkis, Rai Moriya, Charles Rettner, Jae-Seung   Jeong, Daniel Pickard, Robert C. Haddon, and Stuart...
cond-mat.mtrl-sci cond-mat.mes-hall