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

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

2010-01-26

arxiv.org/abs/1001.4767v1

Phys. Rev. B 82, 041404(R) (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevB.82.041404

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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