G.10
Log Number: 37
Abstract Submitted to the NT-99-Logo NANOTUBE-99 Workshop:

Spin electronics using carbon nanotubes

B.W. Alphenaar and K. Tsukagoshi

Hitachi Cambridge Laboratory
Contact e-mail: alphenaar@phy.cam.ac.uk

We use ferromagnetic cobalt contacts to inject and detect spin polarized electrons in multi-walled carbon nanotubes. The small diameter of the nanotube allows us to probe individual magnetic domains. As the alignment of the magnetizations within a pair of contacts switches from parallel to antiparallel, the nanotube resistance switches from a low to a high resistance state. A hysteretic spin dependent resistance is observed up to 20 K. We estimate the spin scattering length of the nanotube to be at least 130 nm at 4.2 K.

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Last modification:   2020.07.24 (Friday) 20:31:10 EDT