Correlation effects of carbon nanotubes at boundaries: Spin polarization induced by zero-energy boundary states
Correlation effects of carbon nanotubes at boundaries: Spin polarization induced by zero-energy boundary states
When a carbon nanotube is truncated with certain type of edges, boundary states localized near the edges appear at the Fermi level. Starting from lattice models, low-energy effective theories are constructed which describe electron correlation effects on the boundary states. We then focus on a thin metallic carbon nanotube which …