The antiferromagnetic order of MnSi has been studied as function of temperature and applied magnetic field using small-angle neutron scattering. The results were analyzed using the three-dimensional resolution function and the scattering cross-section to model the diffraction data. Physical parameters related to the magnetic order, such as intensity, direction/length of the modulation vector and the transverse correlation width were extracted.
Harris, P., Lebech, B., Hae Seop Shim, Mortensen, K., & Pedersen, J. S. (1995). Small-angle neutron-scattering studies of the magnetic phase diagram of MnSi. Physica B: Condensed Matter, 213/214, 375-377. https://doi.org/10.1016/0921-4526(95)00161-2