pythtb.Lattice.get_recip_lat_vecs#

Lattice.get_recip_lat_vecs()[source]#

Return reciprocal lattice vectors in Cartesian coordinates.

Returns:

np.ndarray: Reciprocal lattice vectors, shape (dim_k, dim_r).

Raises:

ValueError: If the k-space dimension dim_k is zero (no periodic directions).