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Black CT, Murray CB, Sandstrom RL, et al. Spin-dependent tunneling in self-assembled cobalt-nanocrystal superlattices. Science. 2000;290(5494):1131-4doi: 10.1126/science.290.5494.1131.
Black, C. T., Murray, C. B., Sandstrom, R. L., & Sun, S. (2000). Spin-dependent tunneling in self-assembled cobalt-nanocrystal superlattices. Science (New York, N.Y.), 290(5494), 1131-4. https://doi.org/10.1126/science.290.5494.1131
Black, C T, et al. "Spin-dependent tunneling in self-assembled cobalt-nanocrystal superlattices." Science (New York, N.Y.) vol. 290,5494 (2000): 1131-4. doi: https://doi.org/10.1126/science.290.5494.1131
Black CT, Murray CB, Sandstrom RL, Sun S. Spin-dependent tunneling in self-assembled cobalt-nanocrystal superlattices. Science. 2000 Nov 10;290(5494):1131-4. doi: 10.1126/science.290.5494.1131. PMID: 11073445.
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Science. 2000 Nov 10;290(5494):1131-4. doi: 10.1126/science.290.5494.1131.

Spin-dependent tunneling in self-assembled cobalt-nanocrystal superlattices.

Science (New York, N.Y.)

C T Black, C B Murray, R L Sandstrom, S Sun

Affiliations

  1. IBM Research Division, T. J. Watson Research Center, Yorktown Heights, NY 10598, USA. [email protected]

PMID: 11073445 DOI: 10.1126/science.290.5494.1131

Abstract

Self-assembled devices composed of periodic arrays of 10-nanometer-diameter cobalt nanocrystals display spin-dependent electron transport. Current-voltage characteristics are well described by single-electron tunneling in a uniform array. At temperatures below 20 kelvin, device magnetoresistance ratios are on the order of 10%, approaching the maximum predicted for ensembles of cobalt islands with randomly oriented preferred magnetic axes. Low-energy spin-flip scattering suppresses magnetoresistance with increasing temperature and bias-voltage.

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