Single-wall Carbon Nanotubes with Ferromagnetic Electrodes
نویسندگان
چکیده
The electron transport in single-wall carbon nanotubes is one-dimensional and ballistic. Typically carbon nanotubes form tunneling contacts to electrodes and behave as quantum dots at low temperatures. We report on experiments on carbon nanotubes contacted with ferromagnetic metal. In these devices strong hysteretic magnetoresistance is observed at low temperatures. A possible interpretation of our results is spin-polarized transport in the nanotube device, although we find quantitative disagreement with the simplest model.
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