Neutron scattering study of heavy fermion antiferromagnet Ce7Ni3 under pressure

Abstract Magnetic excitation of the heavy-fermion compound Ce 7 Ni 3 has been studied by inelastic neutron scattering technique in antiferromagnetic, non-Fermi-liquid (NFL) and Fermi liquid (FL) states under various pressures. The excitation spectra observed below and above the critical pressure for the magnetic ordering show a characteristic feature of spin fluctuations expected for the heavy-fermion material around magnetic instability.