Neutron Spin Scattering by Spin Waves in Metals

This paper reviews neutron scattering studies of spin waves in magnetic metals. In the rare earth metals such studies have given rather detailed information on the indirect exchange interaction and its relation to the electronic structure. Measurements on the iron group metals have so far given much less information and no effects which show unambiguously the itinerant character of the magnetic electrons have been observed, probably because spin-wave studies in iron group metals have only been possible for rather low wavevectors of the spin waves. (author)