APS » PROLA » Phys. Rev. Lett. » Volume 81 » Issue 3

Phys. Rev. Lett. 81, 681 - 684 (1998)

Spin Splitting and Even-Odd Effects in Carbon Nanotubes
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David H. Cobden *, Marc Bockrath, and Paul L. McEuen
Department of Physics, University of California and Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720

Andrew G. Rinzler and Richard E. Smalley
Center for Nanoscale Science and Technology, Rice Quantum Institute, and Department of Chemistry and Physics, MS-100, Rice University, P.O. Box 1892, Houston, Texas 77251

Received 19 March 1998

The level spectrum of a single-walled carbon nanotube rope, studied by transport spectroscopy, shows Zeeman splitting in a magnetic field parallel to the tube axis. The pattern of splittings implies that the spin of the ground state alternates by 1 / 2 as consecutive electrons are added. Other aspects of the Coulomb blockade characteristics, including the current-voltage traces and peak heights, also show corresponding even-odd effects.


©1998 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v81/p681
DOI: 10.1103/PhysRevLett.81.681
PACS: 73.23.Hk, 71.70.Ej, 73.61.Wp

* Present address: Oersted Laboratory, Niels Bohr Institute, Universitetsparken 5, DK-2100 Copenhagen, Denmark.Email address: cobden@fys.ku.dk

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