Inelastic neutron scattering investigation of Ce+3 as a paramagnetic crystal

Abstract

Paramagnetic inelastic neutron scattering measurements have been carried out to investigate the crystal of anomalous rare earth of cerium. The physics of rare earth such as cerium has become very attractive because hybridization of the f electrons with electrons in the conduction band gives rise to a variety of interesting phenomena. In particular, magnetic form factor can use to help in the understanding of the wave functions of localized electrons and inelastic neutron scattering experiments measure energy scales of magnetic fluctuations and characteristic temperatures. At high temperature, the magnetic scattering can be described by two coherent broad peaks. At low temperatures, one narrow inelastic peak indicates dynamic magnetic correlation and paramagnetic effective moment in cerium ions. These results allow us to establish that in Ce+3 ions, at low T, inelastic scattering is contribution of the Kondo effect. © IDOSI Publications, 2011.