SPIN EXCITATIONS IN NORMAL METALS WITH RESONANT ELECTRON-STATES ON IMPURITY ATOMS IN MAGNETIC-FIELD

Resonant states of electrons on impurity atoms in Fermi-liquid of norm al metals manifest themselves in sharp increase of the electron densit y of states on the resonant levels. At low temperatures in a quantizin g magnetic field and high-frequency electromagnetic field resonant tra nsitions of electrons between the resonant levels and Landau levels ac companied by a spin-flip take place. New spectrum branches of spin exc itations of metal exist near the resonant frequencies. They propagate as circular-polarized spin waves, The characteristics of these waves ( spectrum, speed, damping decrement) are found. The cross-section of in elastic magnetic scattering of neutrons by these excitations is calcul ated, The new peaks in energy spectrum of scattered neutrons are predi cted.