TEMPERATURE AND MAGNETIC FIELD DEPENDENCE OF MAGNETIC CORRELATIONS IN THE HEAVY FERMION COMPOUND CeCu6

Inelastic neutron scattering experiments have been performed on the heavy fermion compound CeCu6 at very low temperatures (T >≈ 20 mK) and under magnetic fields up to 50 kOe. The analysis of the data shows that the magnetic scattering is the superposition of a single site contribution of Lorentzian type and of a broadened inelastic contribution associated with AF correlations. These correlations saturate below T ~ 1.5 - 2 K (~TK/2) and are completely destroyed above 40 kOe