Inelastic magnetic neutron scattering from the heavy fermion system CeAl3

Abstract Inelastic scattering of thermal neutrons on heavy fermion system CeAl 3 in a large energy transfer range has revealed an unusual aspect of the magnetic response function. Besides the peculiarity at the energy transfer of approx. 7 meV due to crystal level transition within the ground multiplet of Ce 37 ion in the crystalline electric field, strong magnetic scattering up to 60 meV energy transfer was observed.