Inelastic Neutron Scattering in Ferromagnetic Metals

The relative magnetic inelastic neutron scattering from spin waves and the continuum spin-flip band in a ferromagnetic metal is shown to depend upon the wave vector $\overrightarrow{\mathrm{q}}$. In particular, the scattering from the continuum band vanishes as $q\to 0$, and the scattering from the spin waves vanishes as $q\to q_{max}$, the cutoff vector for spin waves.