sknano.structures.SWNT.t2

SWNT.t2

\(t_2 = -\frac{2n + m}{d_R}\)

where \(d_R = \gcd{(2n + m, 2m + n)}\).

The component of the translation vector \(\mathbf{T}\) along \(\mathbf{a}_2\):

\[\mathbf{T} = t_1\mathbf{a}_1 + t_2\mathbf{a}_2\]