Nonlocal spin transport in single walled carbon nanotube networks
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 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.
Keywords
Cite
@article{arxiv.1208.1849,
title = {Nonlocal spin transport in single walled carbon nanotube networks},
author = {Hyunsoo Yang and Mikhail E. Itkis and Rai Moriya and Charles Rettner and Jae-Seung Jeong and Daniel Pickard and Robert C. Haddon and Stuart S. P. Parkin},
journal= {arXiv preprint arXiv:1208.1849},
year = {2015}
}