sknano.structures.SWNTBundle.Natoms_per_unit_cell¶

SWNTBundle.Natoms_per_unit_cell

Number of atoms in nanotube unit cell.

$N_{\mathrm{atoms}} = 2N = \frac{4(n^2 + m^2 + nm)}{d_R}$

where $$N$$ is the number of graphene hexagons mapped to the nanotube unit cell.