One example is about ferromagnetic spiral structure (Fig-b). Besides the satellite peaks (hkl)+(Kx,Ky,Kz), the magnetic scattering also contributes on some (hkl) peaks. The propagation vector for the magnetic component along the ferromagnetic order should be (000). In this case, to search the propagation vector using k-search, it just needs to select the satellite peaks or both satellite and (hkl) peaks?
Another question is that whether k-search can be used for the analysis of a magnetic structure with multi-K?