![[CIF logo]](https://www.iucr.org/__data/assets/image/0003/125499/CIF_v2.5.jpg)
Magnetic structures (magCIF) version 0.9.8
_atom_site_Fourier_wave_vector.q1_coeff
Name:_atom_site_Fourier_wave_vector.q1_coeff
Alias:
_atom_site_Fourier_wave_vector_q1_coeff
Definition:
For a given incommensurate modulation that contributes to the structure, the wave vector of the modulation can be expressed as an integer linear combination of the d independent wave vectors that define the (3+d)-dimensional superspace. The q1_coeff tag holds the integer coefficient of the contribution of the first independent wave vector, the q2_coeff tag holds the integer coefficient of the contribution of the second independent wave vector, and so on. At the time of this writing, no examples with more than three independent wave vectors are known, though there is no theoretical limit to the number that could occur. These tags are not explicitly magnetic; they are equally applicable to any incommensurate modulation.
Type: Integer
Evaluation method:
with a as atom_site_Fourier_wave_vector a.q1_coeff = a.q_coeff[0]
Category:
atom_site_Fourier_wave_vector