Complex magnetization (strictly speaking complex
spin expectation value) for every spin in the magnetic
cell, represented by a matrix with dimensions of ,
where nMagExt = nMagAtom*prod(N_ext) and is the number
of the magnetic propagation vectors.

k

Magnetic propagation vectors stored in a matrix with dimensions
of .

N_ext

Size of the magnetic supercell in lattice units, default value
is [1 1 1] emaning that the magnetic cell is identical to the
crystallographic cell. The vector extends the cell
along the , and axes.