M real - Pi // Oz
Spherical Neutron Polarimetry simulations. Case of pure magnetic signal: M real and Pi // Oz
The incident polarisation vector is chosen parallel to the Z axis, i.e. perpendicular to the scattering vector Q. The direction of the scattered polarisation (in red) is obtained after π-rotation around the magnetic interaction vector Μ (in blue) of the incident polarisation.
The angle of rotation does not depend on the amplitude of the magnetic interaction vector. We can see that the cross-section does not depend on the orientation of the magnetic interaction vector.