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arXiv · 1001.4767

Spin-orbit interaction in chiral carbon nanotubes probed in pulsed magnetic fields

S. H. Jhang·M. Marganska·Y. Skourski·D. Preusche·B. Witkamp·M. Grifoni·H. van der Zant·J. Wosnitza·C. Strunk
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Abstract

The magneto-conductance of an open carbon nanotube (CNT)-quantum wire was measured in pulsed magnetic fields. At low temperatures we find a peculiar split magneto-conductance peak close to the charge neutrality point. Our analysis of the data reveals that this splitting is intimately connected to the spin-orbit interaction and the tube chirality. Band structure calculations suggest that the current in the peak regions is highly spin-polarized, which calls for application in future CNT-based spintronic devices.

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S. H. Jhang, M. Marganska, Y. Skourski, D. Preusche, B. Witkamp, M. Grifoni, H. van der Zant, J. Wosnitza, C. Strunk. 2010-01-26. Spin-orbit interaction in chiral carbon nanotubes probed in pulsed magnetic fields. https://doi.org/10.1103/physrevb.82.041404

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