planar magnetic structure constraint function
[M, k, n, name, pname, limit] = GM_PLANAR(M0, x)
It generates the parameters of arbitrary planar magnetic structure from
phi angles, ordering wave vector and spin plane normal vector.
Input:
x Input parameters in the following order:
(Phi1, Phi2, ... , kx, ky, kz, nTheta, nPhi).
M0 Size of magnetic moments: (M1, M2, ...) or scalar if all
moments are equal.
Output:
M Array, containing the magnetic moments, dimensions are
[3 nMagExt]. Every column contain the [Mx; My; Mz] magnetic
moment components of a magnetic atom in the xyz coordinate
system.
k Magnetic ordering wavevector in r.l.u., dimensions are [1 3].
n Normal vector to the plane of the incommensurate spins (if k
non-zero).
Optional outputs:
only produced if the output is requested.
name Name of the function.
pname Name of the input parameters in a cell: {'Param1' 'Param2',...}
limit Default limits on the input parameters, dimensions are [2 nX].
Every column contains a lower and upper limit on the parameter.
See also GM_SPHERICAL3D.