wulfric.Crystal.b3

property

property Crystal.b3

Third reciprocal lattice vector.

\[\boldsymbol{b_3} = \frac{2\pi}{V}\boldsymbol{a_1}\times\boldsymbol{a_2}\]

where \(V = \boldsymbol{a_1}\cdot(\boldsymbol{a_2}\times\boldsymbol{a_3})\)

Returns:

b3(3,) numpy.ndarray

Third reciprocal lattice vector \(\boldsymbol{b_3}\).