Fractional Flux Periodicity in Doped Carbon Nanotubes
arXiv:cond-mat/0407539 · doi:10.1103/PhysRevB.70.233406
Abstract
An anomalous magnetic flux periodicity of the ground state is predicted in 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 possibility of this nontrivial periodicity in a heavily doped armchair carbon nanotube.
arXiv comment5 pages, 4 figures
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