Electronic Properties of Armchair Carbon Nanotubes : Bosonization Approach

Abstract

The phase Hamiltonian of armchair carbon nanotubes at half-filling and away from it is derived from the microscopic lattice model by taking the long range Coulomb interaction into account. We investigate the low energy properties of the system using the renormalization group method. At half-filling, the ground state is a Mott insulator with spin gap, in which the bound states of electrons at different atomic sublattices are formed. The difference from the recent results [Phys. Rev. Lett. 79, 5082 (1997)] away half-filling is clarified.

4 pages, 1 figure, Revtex

References in corpus (4)

• Coulomb Interactions and Mesoscopic Effects in Carbon Nanotubes
• Effective low-energy theory for correlated carbon nanotubes
• Spin splitting and even-odd effects in carbon nanotubes
• Correlated transport and non-Fermi liquid behavior in single-wall carbon nanotubes

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