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1. Iron nanoparticle driven spin-valve behavior in aligned carbon nanotube arrays.

Author

Bergeson, J. D., Etzkorn, S. J., Murphey, M. B., Qu, L., Yang, J., Dai, L., and Epstein, A. J.

Subjects
IRON catalysts, SPIN valves, CARBON nanotubes, FERROMAGNETISM, IRON electrodes, NANOPARTICLES, MAGNETORESISTANCE
Abstract

We report the operation of spin-valve structures formed from arrays of aligned carbon nanotubes. The devices require only one deposited ferromagnetic layer with the embedded iron catalyst nanoparticle serving as the other magnetic electrode. A peak in the resistance occurs clearly as a result of the reversal of the magnetization of the electrodes. Device magnetoresistance ratios reach 25%, yielding an estimate of the spin scattering length of 9 μm at low temperature. [ABSTRACT FROM AUTHOR]

Published
2008
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