corner
corner
APS » Journals » Phys. Rev. B » Volume 70 » Issue 23
< Previous Article | Next Article >

Phys. Rev. B 70, 233406 (2004) [4 pages]

Fractional flux periodicity in doped carbon nanotubes

Download: PDF (87 kB) Buy this article Export: BibTeX or EndNote (RIS)

K. Sasaki1,*, S. Murakami2, and R. Saito3
1Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
2Department of Applied Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
3Department of Physics, Tohoku University and
CREST, JST, Sendai 980-8578, Japan

Received 20 July 2004; revised 20 September 2004; published 22 December 2004

An anomalous magnetic flux periodicity of the ground state is predicted in a two-dimensional cylindrical surface composed of square and honeycomb lattice. The ground state and persistent currents exhibit an approximate fractional period of the flux quantum for a specific Fermi energy. The period depends on the aspect ratio of the cylinder and on the lattice structure around the axis. We discuss the possibility of this nontrivial periodicity in a heavily doped armchair carbon nanotube.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.70.233406
DOI:
10.1103/PhysRevB.70.233406
PACS:
73.23.Ra, 73.63.Fg

*Email address: sasaken@imr.tohoku.ac.jp

 
< Previous Article | Next Article >