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

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.

4 pages, 3 figures

References in corpus (3)

• Spin-orbit coupling in curved graphene, fullerenes, nanotubes, and nanotube caps
• Coupling of Spin and Orbital Motion of Electrons in Carbon Nanotubes
• Spin-orbit interaction and anomalous spin relaxation in carbon nanotube quantum dots

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• Dynamical theory of chiral-induced spin selectivity in electron donor-chiral molecule-acceptor systems
• Direct observation of band-gap closure for a semiconducting carbon nanotube in a large parallel magnetic field
• Anomalous magnetization of a carbon nanotube as an excitonic insulator
• Adjudicating Conduction Mechanisms in High Performance Carbon Nanotube Fibers
• Unconventional Spin Valve Based on Normal Metal/Chiral Molecule/Altermagnet Junctions