Crystallographic Information Framework

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Magnetic structures (magCIF) version 0.9.8

Category ATOM_SITE_MOMENT_FOURIER_PARAM

Name:
'ATOM_SITE_MOMENT_FOURIER_PARAM'

Parent category:
atom_site_moment_Fourier

Definition:

   
     Data items in this category record details about the
     coefficients of the Fourier series used to describe the  magnetic
     modulation of an atom. This is a child category of  the
     ATOM_SITE_MOMENT_FOURIER category; so that magnetic Fourier
     components can either be listed within the
     ATOM_SITE_MOMENT_FOURIER loop, or else listed in a separate
     loop.

     Analogous tags: _atom_site_displace_Fourier_param.*,
     _atom_site_rot_Fourier_param.*,
     _atom_site_occ_Fourier_param.*,
     _atom_site_U_Fourier_param.*

Example:

Example 1 - Hypothetical example showing the symmetry-restricted form of cosine and sine components of the modulation vector for a specific Wyckoff site.
    loop_
        _cell_wave_vector_seq_id
        _cell_wave_vector_x
        _cell_wave_vector_y
        _cell_wave_vector_z
              1   0.30000   0.30000   0.00000
              2  -0.60000   0.30000   0.00000
    loop_
        _atom_site_Fourier_wave_vector_seq_id
        _atom_site_Fourier_wave_vector_x
        _atom_site_Fourier_wave_vector_y
        _atom_site_Fourier_wave_vector_z
        _atom_site_Fourier_wave_vector_q1_coeff
        _atom_site_Fourier_wave_vector_q2_coeff
            1   -0.30000   0.60000   0.00000  1  1
            2   -0.60000   0.30000   0.00000  0  1
            3   -0.30000  -0.30000   0.00000 -1  0
    loop_
        _atom_site_moment_Fourier.id
        _atom_site_moment_Fourier.atom_site_label
        _atom_site_moment_Fourier.wave_vector_seq_id
        _atom_site_moment_Fourier.axis
        _atom_site_moment_Fourier_param.cos
        _atom_site_moment_Fourier_param.sin
        _atom_site_moment_Fourier_param.cos_symmform
        _atom_site_moment_Fourier_param.sin_symmform
            1  Fe_1 1 x  0.00000  0.84852  0            mxs
            2  Fe_1 1 y  0.00000  0.42426  0     0.50000*mxs
            3  Fe_1 1 z  0.00000  0.00000  0            0
            4  Fe_1 2 x  0.00000 -0.42426  0    -0.50000*mxs
            5  Fe_1 2 y  0.00000 -0.84852  0           -mxs
            6  Fe_1 2 z  0.00000  0.00000  0            0
            7  Fe_1 3 x -0.42426  0.00000 -0.50000*mxs  0
            8  Fe_1 3 y  0.42426  0.00000  0.50000*mxs  0
            9  Fe_1 3 z  0.00000  0.00000  0            0

Category is of type Loop

Category key:
    _atom_site_moment_Fourier_param.id